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1062db3070
GCC 13 supports _Float16 and __int128 on fewer architectures than clang and thus libcxxrt compiled with gcc13 is sometimes missing related symbols. Hack around this by explicitly appending --undefined-version to LDFLAGS in problematic cases. Reviewed by: theraven, dim Differential Revision: https://reviews.freebsd.org/D45233
55 lines
1.2 KiB
Makefile
55 lines
1.2 KiB
Makefile
PACKAGE= clibs
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SHLIBDIR?= /lib
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.include <src.opts.mk>
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SRCDIR= ${SRCTOP}/contrib/libcxxrt
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SHLIB_MAJOR= 1
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.PATH: ${SRCDIR}
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LIB= cxxrt
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SRCS+= auxhelper.cc
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SRCS+= dynamic_cast.cc
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SRCS+= exception.cc
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SRCS+= guard.cc
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SRCS+= libelftc_dem_gnu3.c
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SRCS+= memory.cc
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SRCS+= stdexcept.cc
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SRCS+= terminate.cc
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SRCS+= typeinfo.cc
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WARNS?= 0
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CFLAGS+= -isystem ${SRCDIR} -nostdinc++
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CXXSTD?= c++14
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.if exists(Version.map.${MACHINE})
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VERSION_MAP= ${.CURDIR}/Version.map.${MACHINE}
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.else
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.if ${MACHINE_ABI:Mlong32}
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VERSION_MAP= Version-32.map
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.else
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VERSION_MAP= Version-64.map
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.endif
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Version-32.map: Version.map
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sed 's/%%NEW_DELETE_TYPE%%/int/' ${.ALLSRC} > ${.TARGET}
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Version-64.map: Version.map
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sed 's/%%NEW_DELETE_TYPE%%/long/' ${.ALLSRC} > ${.TARGET}
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.endif
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.include <bsd.lib.mk>
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# gcc13 doesn't support _Float16 on riscv, powerpc64, and x86 or __int128
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# on i386. Disable checks for missing symbols to allow this to link.
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#
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# XXX: This is a hack that hides an ABI divergence between clang and gcc.
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.if ${COMPILER_TYPE} == "gcc" && \
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(${MACHINE_ARCH} == "amd64" || ${MACHINE_ARCH} == "i386" || \
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${MACHINE_ARCH:Mpowerpc64*} || ${MACHINE_ARCH} == "riscv64")
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LDFLAGS+= -Wl,--undefined-version
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.endif
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