448 lines
14 KiB
Plaintext
448 lines
14 KiB
Plaintext
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[This file contains two alternative recipes for compiling X11 with GCC.
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The first alternative puts libgcc.a into the shared X library; the second
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does not. Neither alternative works on all kinds of systems.
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It may be that when using GCC 2.4, both alternatives work okay on
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relatively recent Sparc systems. The first alternative is likely
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not to work on a Sun 3 without hardware floating point.]
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How to compile X11R5 (patch level 11) with GCC version 2:
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The patches include support for building the shared libraries with GCC
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2 on the Sparc and 68k machines. This version includes the necessary
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parts of libgcc.a in the shared library for X, in case functions in
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that library need it. Thus the default behavior is now to build
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everything, including the libraries, with gcc.
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If you build the shared library this way, it may not work with
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executables made with older versions of GCC (2.3.3 and earlier).
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If that happens, relink those executables with the latest GCC.
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IF YOU THINK YOU MIGHT COMPILE X FOR SOLARIS 2, then you really don't
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need this patch: get /contrib/R5.SunOS5.patch.tar.Z from
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export.lcs.mit.edu instead. It has everything you need to do the
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build for Solaris 2, sets you up to everything with GCC, and is
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backward compatible with Sunos 4.*. Get the the README
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(/contrib/R5.SunOS5.patch.README at export) for more info.
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If you see undefined symbols _dlopen, _dlsym, or _dlclose when linking
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with -lX11, compile and link against the file mit/util/misc/dlsym.c in
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the MIT X11R5 distribution. Alternatively, do dynamic linking
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by using a non-GNU ld.
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mit/config/Imake.tmpl -- Do not set -fstrength-reduce if we have GCC 2.
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If -fstrength-reduce (or any other -f option) is a major win, then it
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will most likely be turned on by -O2 optimization.
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mit/config/sunLib.rules -- If HasGcc and GccVersion > 1 are true, then
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use gcc -fpic to generate PIC code. Make sure that gcc does not use
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gas (the GNU assembler) when compiling PIC code; gas does not assemble
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it correctly.
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***If you have gas installed where gcc uses it by default, you might have
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to add -B/bin/ to the PositionIndependentCFlags.***
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mit/config/site.def -- Define GccVersion to be 2.
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mit/config/sun.cf -- When compiling with GCC 2, use -O2 optimization.
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mit/config/sunLib.rules -- When compiling with GCC 2, use -fpic for
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position independent code generation.
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mit/rgb/Imakefile -- No longer need to compile some modules with
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cc on the Sparc since GCC 2 produces proper -fpcc-struct-return code.
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mit/server/os/Imakefile -- Likewise.
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mit/server/ddx/sun/Imakefile -- When compiling with GCC 2, some modules
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should be compiled with -fvolatile.
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mit/clients/twm/Imakefile -- Fix bad decls of malloc, realloc in gram.c.
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mit/lib/X/Imakefile -- Make libgcc.a a required lib for libX11.so
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*** mit/clients/twm/Imakefile Mon May 17 22:05:22 1993
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--- new/clients/twm/Imakefile Mon May 17 22:28:46 1993
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***************
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*** 32,41 ****
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--- 32,48 ----
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ComplexProgramTarget(twm)
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InstallNonExecFile(system.twmrc,$(TWMDIR))
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+ #if HasGcc && GccVersion > 1 && defined (SunArchitecture)
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gram.h gram.c: gram.y
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yacc $(YFLAGS) gram.y
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+ sed -e 's/^extern char \*malloc(), \*realloc();//g' y.tab.c >gram.c
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+ $(MV) y.tab.h gram.h
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+ #else
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+ gram.h gram.c: gram.y
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+ yacc $(YFLAGS) gram.y
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$(MV) y.tab.c gram.c
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$(MV) y.tab.h gram.h
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+ #endif
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clean::
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$(RM) y.tab.h y.tab.c lex.yy.c gram.h gram.c lex.c deftwmrc.c
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*** mit/config/Imake.tmpl Mon May 17 22:02:57 1993
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--- new/config/Imake.tmpl Mon May 17 22:15:06 1993
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***************
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*** 500,506 ****
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--- 500,510 ----
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#endif
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#ifndef CcCmd
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#if HasGcc
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+ #if GccVersion > 1
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+ #define CcCmd gcc -fpcc-struct-return
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+ #else
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#define CcCmd gcc -fstrength-reduce -fpcc-struct-return
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+ #endif
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#else
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#define CcCmd cc
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#endif
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*** mit/config/site.def Mon May 17 22:02:44 1993
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--- new/config/site.def Mon May 17 22:22:28 1993
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***************
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*** 25,31 ****
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#ifdef BeforeVendorCF
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! /* #define HasGcc YES */
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#endif /* BeforeVendorCF */
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--- 25,33 ----
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#ifdef BeforeVendorCF
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! #define HasGcc YES
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! /* GccVersion > 1 implies building shared libraries with gcc */
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! #define GccVersion 2
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#endif /* BeforeVendorCF */
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*** mit/config/sun.cf Mon May 17 22:03:02 1993
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--- new/config/sun.cf Mon May 17 22:24:55 1993
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***************
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*** 41,49 ****
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--- 41,55 ----
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#if HasGcc
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+ #if GccVersion > 1
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+ #define OptimizedCDebugFlags -O2
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+ #else
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+ #define OptimizedCDebugFlags -O
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#define SharedLibraryCcCmd cc
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#define ExtraLoadFlags -B/usr/bin/
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#define AllocateLocalDefines /**/
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+ #endif
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+
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.c.o:
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$(CC) -c $(CFLAGS) $*.c
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*** mit/config/sunLib.rules Mon May 17 22:02:46 1993
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--- new/config/sunLib.rules Mon May 17 22:19:06 1993
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***************
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*** 23,29 ****
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--- 23,33 ----
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#define SharedLibraryLoadFlags -assert pure-text
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#endif
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#ifndef PositionIndependentCFlags
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+ #if defined(HasGcc) && GccVersion > 1
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+ #define PositionIndependentCFlags -fpic
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+ #else
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#define PositionIndependentCFlags -pic
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+ #endif
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#endif
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/*
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*** mit/lib/X/Imakefile Mon May 17 22:05:03 1993
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--- new/lib/X/Imakefile Mon May 17 22:32:26 1993
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***************
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*** 9,14 ****
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--- 9,31 ----
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#define MotifBC NO
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#endif
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+ #if defined(SunArchitecture)
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+ #if SystemV4
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+ #if HasGcc
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+ REQUIREDLIBS= -lgcc -lc
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+ #else
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+ REQUIREDLIBS= -lc
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+ #endif
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+ #else
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+ #if HasGcc && GccVersion > 1
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+ XCOMM Hack to fix gcc 2 ``-nostdlib'' deficiency on SunOS 4.x
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+ REQUIREDLIBS= `gcc -v 2>&1 | awk '{print $$4}' | sed -e 's/specs$$/libgcc.a/'`
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+ #else
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+ REQUIREDLIBS=
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+ #endif
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+ #endif
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+ #endif
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+
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#ifndef BuildXimp
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#define BuildXimp NO
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#endif
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*** mit/rgb/Imakefile Mon May 17 22:05:31 1993
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--- new/rgb/Imakefile Mon May 17 22:25:30 1993
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***************
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*** 17,23 ****
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#if !(defined(SGIArchitecture) || SystemV4)
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DBMLIB = -ldbm
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#endif
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! #if defined(SparcArchitecture) && HasGcc
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CC = cc
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CCOPTIONS = /**/
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EXTRA_LOAD_FLAGS = /**/
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--- 17,23 ----
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#if !(defined(SGIArchitecture) || SystemV4)
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DBMLIB = -ldbm
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#endif
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! #if defined(SparcArchitecture) && HasGcc && GccVersion <= 1
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CC = cc
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CCOPTIONS = /**/
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EXTRA_LOAD_FLAGS = /**/
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*** mit/server/ddx/sun/Imakefile Mon May 17 22:05:57 1993
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--- new/server/ddx/sun/Imakefile Mon May 17 22:27:23 1993
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***************
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*** 43,48 ****
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--- 43,53 ----
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LinkFile(sunGX.o,sunGX.o.dist)
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#endif
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+ #if HasGcc && GccVersion > 1
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+ SpecialObjectRule(sunCG2C.o,sunCG2C.c,-fvolatile)
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+ SpecialObjectRule(sunCG2M.o,sunCG2M.c,-fvolatile)
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+ #endif
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+
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sunInitExtMono.o: $(ICONFIGFILES)
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ObjectFromSpecialSource(sunInitExtMono,../mi/miinitext,-UPEXEXT)
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ObjectFromSpecialSource(sunInitMono,sunInit,-DMONO_ONLY)
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*** mit/server/os/Imakefile Mon May 17 22:05:46 1993
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--- new/server/os/Imakefile Mon May 17 22:26:02 1993
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***************
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*** 132,138 ****
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SpecialObjectRule(osinit.o,$(ICONFIGFILES),$(ADM_DEFINES))
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SpecialObjectRule(WaitFor.o,$(ICONFIGFILES),$(EXT_DEFINES))
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SpecialObjectRule(fonttype.o,$(ICONFIGFILES),$(FONT_DEFINES))
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! #if defined(SparcArchitecture) && HasGcc
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oscolor.o: $(ICONFIGFILES)
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$(RM) $@
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cc -c $(DBM_DEFINES) $(CDEBUGFLAGS) $(ALLDEFINES) $*.c
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--- 132,138 ----
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SpecialObjectRule(osinit.o,$(ICONFIGFILES),$(ADM_DEFINES))
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SpecialObjectRule(WaitFor.o,$(ICONFIGFILES),$(EXT_DEFINES))
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SpecialObjectRule(fonttype.o,$(ICONFIGFILES),$(FONT_DEFINES))
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! #if defined(SparcArchitecture) && HasGcc && GccVersion <= 1
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oscolor.o: $(ICONFIGFILES)
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$(RM) $@
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cc -c $(DBM_DEFINES) $(CDEBUGFLAGS) $(ALLDEFINES) $*.c
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[This is the older version]
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How to compile X11R5 (patch level 11) with GCC version 2:
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The patches include support for building the shared libraries with GCC 2 on
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the Sparc and 68k machines.
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NOTE: Such shared libraries built with GCC version 2.3 DID NOT WORK
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with executables previously linked using Sun CC! This is because
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neither those executables nor the gcc-compiled shared libraries contain
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libgcc.a. The shared libraries did work with executables linked using
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GCC (running the Sun linker, of course) because GCC tells the linker to
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link in libgcc.a. Because of these limitations the default behavior is
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to NOT build the shared libraries with gcc.
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Changes in GCC 2.4 seem to have eliminated the problem, and such a
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shared library now seems work with all executables. If you want the
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gcc-compiled shared libraries turn on "Gcc2BuildLibs" in site.def. If
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you try this, please tell bug-gcc@prep.ai.mit.edu whether it works.
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Sun forgot to include a static version of libdl.a with some versions
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of SunOS (4.1 mainly). If you see undefined symbols _dlopen, _dlsym,
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or _dlclose when linking with -lX11, compile and link against the file
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mit/util/misc/dlsym.c in the MIT X11R5 distribution.
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mit/config/Imake.tmpl -- Do not set -fstrength-reduce if we have GCC 2. If
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-fstrength-reduce (or any other -f option) is a major win, then it will
|
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|
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most likely be turned on by -O2 optimization.
|
|||
|
|
|
|||
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mit/config/sunLib.rules -- If HasGcc2 and Gcc2BuildLibs are defined, then
|
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|
|
use gcc -fpic to generate PIC code. Make sure that gcc does not use gas (the
|
|||
|
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GNU assembler) when compiling PIC code; gas does not assemble it correctly.
|
|||
|
|
If you have gas installed where gcc uses it by default, you might have to add
|
|||
|
|
-B/bin/ to the PositionIndependentCFlags.
|
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|
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|
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mit/config/site.def -- Define HasGcc2 to be YES.
|
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|
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mit/config/sun.cf -- When compiling with GCC 2, use -O2 optimization.
|
|||
|
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|
|||
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mit/rgb/Imakefile -- No longer need to compile some modules with
|
|||
|
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cc on the Sparc since GCC 2 produces proper -fpcc-struct-return code.
|
|||
|
|
|
|||
|
|
mit/server/os/Imakefile -- Likewise.
|
|||
|
|
|
|||
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mit/clients/twm/Imakefile -- fix bad decls of malloc, realloc in gram.c.
|
|||
|
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|
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*** mit/config/Imake.tmpl.ORIG Tue Dec 31 11:07:56 1991
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--- mit/config/Imake.tmpl Tue Dec 31 12:30:47 1991
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***************
|
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*** 499,508 ****
|
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--- 499,512 ----
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#define HasGcc NO
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#endif
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#ifndef CcCmd
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+ #if HasGcc2
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+ #define CcCmd gcc -fpcc-struct-return
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+ #else
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#if HasGcc
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#define CcCmd gcc -fstrength-reduce -fpcc-struct-return
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#else
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#define CcCmd cc
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+ #endif
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#endif
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#endif
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#if HasFortran
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*** mit/config/sunLib.rules.ORIG Tue Dec 31 11:11:24 1991
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--- mit/config/sunLib.rules Tue May 5 12:26:12 1992
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***************
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*** 23,30 ****
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--- 23,34 ----
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#define SharedLibraryLoadFlags -assert pure-text
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#endif
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#ifndef PositionIndependentCFlags
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+ #if defined(HasGcc2) && defined (Gcc2BuildLibs)
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+ #define PositionIndependentCFlags -fpic
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+ #else
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#define PositionIndependentCFlags -pic
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#endif
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+ #endif
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/*
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* InstallSharedLibrary - generate rules to install the shared library.
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*** mit/config/site.def.ORIG Tue Dec 31 11:13:49 1991
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--- mit/config/site.def Tue Dec 31 12:02:59 1991
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***************
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*** 25,31 ****
|
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|
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|
|||
|
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#ifdef BeforeVendorCF
|
|||
|
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|
|||
|
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! /* #define HasGcc YES */
|
|||
|
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|
|||
|
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#endif /* BeforeVendorCF */
|
|||
|
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|
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--- 25,33 ----
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|
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#ifdef BeforeVendorCF
|
|||
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|||
|
|
! #define HasGcc YES
|
|||
|
|
! #define HasGcc2 YES
|
|||
|
|
! /* #define Gcc2BuildLibs YES */
|
|||
|
|
|
|||
|
|
#endif /* BeforeVendorCF */
|
|||
|
|
|
|||
|
|
*** mit/config/sun.cf.ORIG Tue Dec 31 11:13:57 1991
|
|||
|
|
--- mit/config/sun.cf Tue May 5 12:29:50 1992
|
|||
|
|
***************
|
|||
|
|
*** 34,42 ****
|
|||
|
|
--- 41,61 ----
|
|||
|
|
|
|||
|
|
#if HasGcc
|
|||
|
|
|
|||
|
|
+ #if defined(HasGcc2)
|
|||
|
|
+ #define OptimizedCDebugFlags -O2
|
|||
|
|
+ /* Leave Alone XXX */
|
|||
|
|
+ #else
|
|||
|
|
+ #define OptimizedCDebugFlags -O
|
|||
|
|
#define SharedLibraryCcCmd cc
|
|||
|
|
#define ExtraLoadFlags -B/usr/bin/
|
|||
|
|
#define AllocateLocalDefines /**/
|
|||
|
|
+ #endif
|
|||
|
|
+
|
|||
|
|
+ #if !defined(Gcc2BuildLibs)
|
|||
|
|
+ #define SharedLibraryCcCmd cc
|
|||
|
|
+ #define ExtraLoadFlags -B/usr/bin/
|
|||
|
|
+ #define AllocateLocalDefines /**/
|
|||
|
|
+ #endif
|
|||
|
|
|
|||
|
|
.c.o:
|
|||
|
|
$(CC) -c $(CFLAGS) $*.c
|
|||
|
|
*** mit/rgb/Imakefile.ORIG Wed Jan 15 16:43:18 1992
|
|||
|
|
--- mit/rgb/Imakefile Thu Jan 2 13:34:09 1992
|
|||
|
|
***************
|
|||
|
|
*** 17,23 ****
|
|||
|
|
#if !(defined(SGIArchitecture) || SystemV4)
|
|||
|
|
DBMLIB = -ldbm
|
|||
|
|
#endif
|
|||
|
|
! #if defined(SparcArchitecture) && HasGcc
|
|||
|
|
CC = cc
|
|||
|
|
CCOPTIONS = /**/
|
|||
|
|
EXTRA_LOAD_FLAGS = /**/
|
|||
|
|
--- 17,23 ----
|
|||
|
|
#if !(defined(SGIArchitecture) || SystemV4)
|
|||
|
|
DBMLIB = -ldbm
|
|||
|
|
#endif
|
|||
|
|
! #if defined(SparcArchitecture) && HasGcc && !defined(HasGcc2)
|
|||
|
|
CC = cc
|
|||
|
|
CCOPTIONS = /**/
|
|||
|
|
EXTRA_LOAD_FLAGS = /**/
|
|||
|
|
*** mit/server/os/Imakefile.ORIG Wed Jan 15 16:46:23 1992
|
|||
|
|
--- mit/server/os/Imakefile Wed Jan 15 16:46:48 1992
|
|||
|
|
***************
|
|||
|
|
*** 132,138 ****
|
|||
|
|
SpecialObjectRule(osinit.o,$(ICONFIGFILES),$(ADM_DEFINES))
|
|||
|
|
SpecialObjectRule(WaitFor.o,$(ICONFIGFILES),$(EXT_DEFINES))
|
|||
|
|
SpecialObjectRule(fonttype.o,$(ICONFIGFILES),$(FONT_DEFINES))
|
|||
|
|
! #if defined(SparcArchitecture) && HasGcc
|
|||
|
|
oscolor.o: $(ICONFIGFILES)
|
|||
|
|
$(RM) $@
|
|||
|
|
cc -c $(DBM_DEFINES) $(CDEBUGFLAGS) $(ALLDEFINES) $*.c
|
|||
|
|
--- 132,138 ----
|
|||
|
|
SpecialObjectRule(osinit.o,$(ICONFIGFILES),$(ADM_DEFINES))
|
|||
|
|
SpecialObjectRule(WaitFor.o,$(ICONFIGFILES),$(EXT_DEFINES))
|
|||
|
|
SpecialObjectRule(fonttype.o,$(ICONFIGFILES),$(FONT_DEFINES))
|
|||
|
|
! #if defined(SparcArchitecture) && HasGcc && !defined(HasGcc2)
|
|||
|
|
oscolor.o: $(ICONFIGFILES)
|
|||
|
|
$(RM) $@
|
|||
|
|
cc -c $(DBM_DEFINES) $(CDEBUGFLAGS) $(ALLDEFINES) $*.c
|
|||
|
|
*** 1.1 1992/09/08 19:52:07
|
|||
|
|
--- mit/server/ddx/sun/Imakefile 1992/09/08 21:10:22
|
|||
|
|
***************
|
|||
|
|
*** 43,48 ****
|
|||
|
|
--- 43,53 ----
|
|||
|
|
LinkFile(sunGX.o,sunGX.o.dist)
|
|||
|
|
#endif
|
|||
|
|
|
|||
|
|
+ #if HasGcc2
|
|||
|
|
+ SpecialObjectRule(sunCG2C.o,sunCG2C.c,-fvolatile)
|
|||
|
|
+ SpecialObjectRule(sunCG2M.o,sunCG2M.c,-fvolatile)
|
|||
|
|
+ #endif
|
|||
|
|
+
|
|||
|
|
sunInitExtMono.o: $(ICONFIGFILES)
|
|||
|
|
ObjectFromSpecialSource(sunInitExtMono,../mi/miinitext,-UPEXEXT)
|
|||
|
|
ObjectFromSpecialSource(sunInitMono,sunInit,-DMONO_ONLY)
|
|||
|
|
|
|||
|
|
*** /tmp/RCSAa24446 Tue Sep 15 12:23:32 1992
|
|||
|
|
--- mit/clients/twm/Imakefile Thu Aug 13 18:18:07 1992
|
|||
|
|
***************
|
|||
|
|
*** 32,41 ****
|
|||
|
|
--- 32,48 ----
|
|||
|
|
ComplexProgramTarget(twm)
|
|||
|
|
InstallNonExecFile(system.twmrc,$(TWMDIR))
|
|||
|
|
|
|||
|
|
+ #if HasGcc2 && defined (SunArchitecture)
|
|||
|
|
gram.h gram.c: gram.y
|
|||
|
|
yacc $(YFLAGS) gram.y
|
|||
|
|
+ sed -e 's/^extern char \*malloc(), \*realloc();//g' y.tab.c >gram.c
|
|||
|
|
+ $(MV) y.tab.h gram.h
|
|||
|
|
+ #else
|
|||
|
|
+ gram.h gram.c: gram.y
|
|||
|
|
+ yacc $(YFLAGS) gram.y
|
|||
|
|
$(MV) y.tab.c gram.c
|
|||
|
|
$(MV) y.tab.h gram.h
|
|||
|
|
+ #endif
|
|||
|
|
|
|||
|
|
clean::
|
|||
|
|
$(RM) y.tab.h y.tab.c lex.yy.c gram.h gram.c lex.c deftwmrc.c
|
|||
|
|
|