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