| 1 | AC_DEFUN([AM_GNU_GETTEXT_VERSION], []) |
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| 2 | |
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| 3 | # Check for binary relocation support. |
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| 4 | # Written by Hongli Lai |
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| 5 | # http://autopackage.org/ |
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| 6 | |
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| 7 | AC_DEFUN([AM_BINRELOC], |
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| 8 | [ |
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| 9 | AC_ARG_ENABLE(binreloc, |
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| 10 | [ --enable-binreloc compile with binary relocation support |
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| 11 | (default=enable when available)], |
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| 12 | enable_binreloc=$enableval,enable_binreloc=auto) |
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| 13 | |
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| 14 | AC_ARG_ENABLE(binreloc-threads, |
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| 15 | [ --enable-binreloc-threads compile binary relocation with threads support |
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| 16 | (default=yes)], |
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| 17 | enable_binreloc_threads=$enableval,enable_binreloc_threads=yes) |
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| 18 | |
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| 19 | BINRELOC_CFLAGS= |
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| 20 | BINRELOC_LIBS= |
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| 21 | if test "x$enable_binreloc" = "xauto"; then |
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| 22 | AC_CHECK_FILE([/proc/self/maps]) |
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| 23 | AC_CACHE_CHECK([whether everything is installed to the same prefix], |
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| 24 | [br_cv_valid_prefixes], [ |
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| 25 | if test "$bindir" = '${exec_prefix}/bin' -a "$sbindir" = '${exec_prefix}/sbin' -a \ |
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| 26 | "$datarootdir" = '${prefix}/share' -a "$libdir" = '${exec_prefix}/lib' -a \ |
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| 27 | "$libexecdir" = '${exec_prefix}/libexec' -a "$sysconfdir" = '${prefix}/etc' |
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| 28 | then |
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| 29 | br_cv_valid_prefixes=yes |
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| 30 | else |
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| 31 | br_cv_valid_prefixes=no |
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| 32 | fi |
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| 33 | ]) |
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| 34 | fi |
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| 35 | AC_CACHE_CHECK([whether binary relocation support should be enabled], |
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| 36 | [br_cv_binreloc], |
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| 37 | [if test "x$enable_binreloc" = "xyes"; then |
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| 38 | br_cv_binreloc=yes |
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| 39 | elif test "x$enable_binreloc" = "xauto"; then |
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| 40 | if test "x$br_cv_valid_prefixes" = "xyes" -a \ |
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| 41 | "x$ac_cv_file__proc_self_maps" = "xyes"; then |
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| 42 | br_cv_binreloc=yes |
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| 43 | else |
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| 44 | br_cv_binreloc=no |
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| 45 | fi |
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| 46 | else |
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| 47 | br_cv_binreloc=no |
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| 48 | fi]) |
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| 49 | |
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| 50 | if test "x$br_cv_binreloc" = "xyes"; then |
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| 51 | BINRELOC_CFLAGS="-DENABLE_BINRELOC" |
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| 52 | AC_DEFINE(ENABLE_BINRELOC,,[Use binary relocation?]) |
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| 53 | if test "x$enable_binreloc_threads" = "xyes"; then |
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| 54 | AC_CHECK_LIB([pthread], [pthread_getspecific]) |
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| 55 | fi |
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| 56 | |
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| 57 | AC_CACHE_CHECK([whether binary relocation should use threads], |
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| 58 | [br_cv_binreloc_threads], |
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| 59 | [if test "x$enable_binreloc_threads" = "xyes"; then |
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| 60 | if test "x$ac_cv_lib_pthread_pthread_getspecific" = "xyes"; then |
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| 61 | br_cv_binreloc_threads=yes |
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| 62 | else |
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| 63 | br_cv_binreloc_threads=no |
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| 64 | fi |
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| 65 | else |
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| 66 | br_cv_binreloc_threads=no |
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| 67 | fi]) |
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| 68 | |
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| 69 | if test "x$br_cv_binreloc_threads" = "xyes"; then |
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| 70 | BINRELOC_LIBS="-lpthread" |
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| 71 | AC_DEFINE(BR_PTHREAD,1,[Include pthread support for binary relocation?]) |
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| 72 | else |
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| 73 | BINRELOC_CFLAGS="$BINRELOC_CFLAGS -DBR_PTHREADS=0" |
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| 74 | AC_DEFINE(BR_PTHREAD,0,[Include pthread support for binary relocation?]) |
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| 75 | fi |
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| 76 | fi |
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| 77 | AC_SUBST(BINRELOC_CFLAGS) |
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| 78 | AC_SUBST(BINRELOC_LIBS) |
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| 79 | ]) |
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