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https://github.com/worldforge/cyphesis
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52 lines
1.8 KiB
Text
52 lines
1.8 KiB
Text
# Check for binary relocation support.
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# Written by Hongli Lai
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# http://autopackage.org/
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AC_DEFUN([AM_BINRELOC],
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[
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AC_ARG_ENABLE(binreloc,
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[ --enable-binreloc compile with binary relocation support
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(default=enable when available)],
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enable_binreloc=$enableval,enable_binreloc=auto)
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BINRELOC_CFLAGS=
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BINRELOC_LIBS=
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if test "x$enable_binreloc" = "xauto"; then
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AC_CHECK_FILE([/proc/self/maps])
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AC_CACHE_CHECK([whether everything is installed to the same prefix],
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[br_cv_valid_prefixes], [
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# datarootdir variables was introduced with autoconf-2.60
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if test "$bindir" = '${exec_prefix}/bin' -a "$sbindir" = '${exec_prefix}/sbin' -a \
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\( "$datadir" = '${prefix}/share' -o \( "$datadir" = '${datarootdir}' -a "$datarootdir" = '${prefix}/share' \) \) -a \
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"$libdir" = '${exec_prefix}/lib' -a \
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"$libexecdir" = '${exec_prefix}/libexec' -a "$sysconfdir" = '${prefix}/etc'
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then
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br_cv_valid_prefixes=yes
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else
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br_cv_valid_prefixes=no
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fi
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])
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fi
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AC_CACHE_CHECK([whether binary relocation support should be enabled],
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[br_cv_binreloc],
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[if test "x$enable_binreloc" = "xyes"; then
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br_cv_binreloc=yes
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elif test "x$enable_binreloc" = "xauto"; then
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if test "x$br_cv_valid_prefixes" = "xyes" -a \
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"x$ac_cv_file__proc_self_maps" = "xyes"; then
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br_cv_binreloc=yes
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else
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br_cv_binreloc=no
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fi
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else
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br_cv_binreloc=no
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fi])
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if test "x$br_cv_binreloc" = "xyes"; then
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BINRELOC_CFLAGS="-DENABLE_BINRELOC"
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dnl AC_DEFINE(ENABLE_BINRELOC,,[Use binary relocation?])
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fi
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AC_SUBST(BINRELOC_CFLAGS)
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AC_SUBST(BINRELOC_LIBS)
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])
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