1 ## Process this file with autoconf to produce configure. 2 ## In general, the safest way to proceed is to run ./autogen.sh 3 4 # make sure we're interpreted by some minimal autoconf 5 AC_PREREQ(2.57) 6 7 AC_INIT(open-vcdiff, 0.8.3, opensource@google.com) 8 AC_CONFIG_SRCDIR(README) 9 AC_CONFIG_MACRO_DIR(m4) 10 AM_INIT_AUTOMAKE 11 AM_CONFIG_HEADER(src/config.h) 12 13 # Checks for programs. 14 AC_PROG_CC 15 AC_PROG_CPP 16 AC_PROG_CXX 17 AM_CONDITIONAL(GCC, test "$GCC" = yes) # let the Makefile know if we're gcc 18 AC_CANONICAL_HOST 19 20 LT_INIT 21 AC_PROG_LIBTOOL 22 AC_SUBST(LIBTOOL_DEPS) 23 24 # Check whether some low-level functions/files are available 25 AC_HEADER_STDC 26 27 # Built-in memcmp can be inefficient when gcc compiles for x86 or PowerPC 28 # processors. In those cases, use an alternative function instead of memcmp. 29 case $host_cpu in 30 *86*|powerpc*) 31 if test "$GCC" = "yes"; then 32 AC_DEFINE(VCDIFF_USE_BLOCK_COMPARE_WORDS, 1, 33 Use custom compare function instead of memcmp) 34 fi 35 ;; 36 esac 37 38 AC_CHECK_HEADERS([ext/rope]) 39 AC_CHECK_HEADERS([getopt.h]) 40 AC_CHECK_HEADERS([malloc.h]) 41 AC_CHECK_HEADERS([sys/mman.h]) 42 AC_CHECK_HEADERS([sys/time.h]) 43 AC_CHECK_HEADERS([unistd.h]) 44 AC_CHECK_HEADERS([windows.h]) 45 AC_CHECK_FUNCS([gettimeofday QueryPerformanceCounter]) 46 AC_CHECK_FUNCS([memalign posix_memalign]) 47 AC_CHECK_FUNCS([mprotect]) 48 49 # Start of definitions needed by gflags package 50 51 # These are tested for by AC_HEADER_STDC, but I check again to set the var 52 AC_CHECK_HEADER(stdint.h, ac_cv_have_stdint_h=1, ac_cv_have_stdint_h=0) 53 AC_CHECK_HEADER(sys/types.h, ac_cv_have_systypes_h=1, ac_cv_have_systypes_h=0) 54 AC_CHECK_HEADER(inttypes.h, ac_cv_have_inttypes_h=1, ac_cv_have_inttypes_h=0) 55 AC_CHECK_HEADERS([fnmatch.h]) 56 57 # These are the types I need. We look for them in either stdint.h, 58 # sys/types.h, or inttypes.h, all of which are part of the default-includes. 59 AC_CHECK_TYPE(uint16_t, ac_cv_have_uint16_t=1, ac_cv_have_uint16_t=0) 60 AC_CHECK_TYPE(u_int16_t, ac_cv_have_u_int16_t=1, ac_cv_have_u_int16_t=0) 61 AC_CHECK_TYPE(__int16, ac_cv_have___int16=1, ac_cv_have___int16=0) 62 63 AC_CHECK_FUNCS([strtoll strtoq]) 64 AC_CHECK_FUNCS([setenv putenv]) # MinGW has putenv but not setenv 65 66 AX_C___ATTRIBUTE__ 67 # We only care about __attribute__ ((unused)) 68 if test x"$ac_cv___attribute__" = x"yes"; then 69 ac_cv___attribute__unused="__attribute__ ((unused))" 70 else 71 ac_cv___attribute__unused= 72 fi 73 74 ACX_PTHREAD 75 76 # Find out what namespace 'normal' STL code lives in, and also what namespace 77 # the user wants our classes to be defined in 78 AC_CXX_STL_NAMESPACE 79 AC_DEFINE_GOOGLE_NAMESPACE(google) 80 81 # These are what's needed by gflags.h.in 82 AC_SUBST(ac_google_start_namespace) 83 AC_SUBST(ac_google_end_namespace) 84 AC_SUBST(ac_google_namespace) 85 AC_SUBST(ac_cv___attribute__unused) 86 AC_SUBST(ac_cv_have_stdint_h) 87 AC_SUBST(ac_cv_have_systypes_h) 88 AC_SUBST(ac_cv_have_inttypes_h) 89 AC_SUBST(ac_cv_have_uint16_t) 90 AC_SUBST(ac_cv_have_u_int16_t) 91 AC_SUBST(ac_cv_have___int16) 92 93 # For windows, this has a non-trivial value (__declspec(export)), but any 94 # system that uses configure wants this to be the empty string. 95 AC_DEFINE(GFLAGS_DLL_DECL,, 96 [Always the empty-string on non-windows systems. 97 On windows, should be "__declspec(dllexport)". 98 This way, when we compile the dll, we export our functions/classes. 99 It's safe to define this here because config.h is only used 100 internally, to compile the DLL, and every DLL source file 101 #includes "config.h" before anything else.]) 102 103 # End of definitions needed by gflags package 104 105 # Solaris 10 6/06 has a bug where /usr/sfw/lib/libstdc++.la is empty. 106 # If so, we replace it with our own version. 107 LIBSTDCXX_LA_LINKER_FLAG= 108 if test -f /usr/sfw/lib/libstdc++.la && ! test -s /usr/sfw/lib/libstdc++.la 109 then 110 LIBSTDCXX_LA_LINKER_FLAG='-L$(top_srcdir)/src/solaris' 111 fi 112 AC_SUBST(LIBSTDCXX_LA_LINKER_FLAG) 113 114 AC_CONFIG_FILES([Makefile 115 gflags/src/gflags/gflags.h 116 gflags/src/gflags/gflags_completions.h]) 117 AC_OUTPUT 118
