tools/build: Provide FreeBSD's bitstring API when cross-building
This is needed for building makefs as a cross-tool since the ZFS code
uses these APIs.
Reviewed by: emaste
Fixes: 240afd8c1f
("makefs: Add ZFS support")
Differential Revision: https://reviews.freebsd.org/D36133
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@ -153,6 +153,15 @@ SYSINCS+= ${SRCTOP}/sys/sys/nlist_aout.h
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.if ${.MAKE.OS} != "FreeBSD"
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.PATH: ${.CURDIR}/cross-build
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# Needed by our sys/types.h wrapper
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SYSINCS+= ${SRCTOP}/sys/sys/bitcount.h
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# macOS's bitstring lacks FreeBSD-specific additions used by makefs's ZFS code
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# and Linux doesn't have it at all.
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INCS+= ${SRCTOP}/include/bitstring.h
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SYSINCS+= ${SRCTOP}/sys/sys/bitstring.h
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# dbopen() behaves differently on Linux and FreeBSD so we ensure that we
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# bootstrap the FreeBSD db code. The cross-build headers #define dbopen() to
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# __freebsd_dbopen() so that we don't ever use the host version
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@ -68,4 +68,8 @@ typedef unsigned long cap_ioctl_t;
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struct cap_rights;
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typedef struct cap_rights cap_rights_t;
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/* Needed for bitstring */
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#include <sys/bitcount.h>
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#endif
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