diff options
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 117 |
1 files changed, 117 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac new file mode 100644 index 0000000..3005c88 --- /dev/null +++ b/configure.ac @@ -0,0 +1,117 @@ +## Process this file with autoconf to produce configure. +## In general, the safest way to proceed is to run ./autogen.sh + +# make sure we're interpreted by some minimal autoconf +AC_PREREQ(2.57) + +AC_INIT(open-vcdiff, 0.8.3, opensource@google.com) +AC_CONFIG_SRCDIR(README) +AC_CONFIG_MACRO_DIR(m4) +AM_INIT_AUTOMAKE +AM_CONFIG_HEADER(src/config.h) + +# Checks for programs. +AC_PROG_CC +AC_PROG_CPP +AC_PROG_CXX +AM_CONDITIONAL(GCC, test "$GCC" = yes) # let the Makefile know if we're gcc +AC_CANONICAL_HOST + +LT_INIT +AC_PROG_LIBTOOL +AC_SUBST(LIBTOOL_DEPS) + +# Check whether some low-level functions/files are available +AC_HEADER_STDC + +# Built-in memcmp can be inefficient when gcc compiles for x86 or PowerPC +# processors. In those cases, use an alternative function instead of memcmp. +case $host_cpu in + *86*|powerpc*) + if test "$GCC" = "yes"; then + AC_DEFINE(VCDIFF_USE_BLOCK_COMPARE_WORDS, 1, + Use custom compare function instead of memcmp) + fi + ;; +esac + +AC_CHECK_HEADERS([ext/rope]) +AC_CHECK_HEADERS([getopt.h]) +AC_CHECK_HEADERS([malloc.h]) +AC_CHECK_HEADERS([sys/mman.h]) +AC_CHECK_HEADERS([sys/time.h]) +AC_CHECK_HEADERS([unistd.h]) +AC_CHECK_HEADERS([windows.h]) +AC_CHECK_FUNCS([gettimeofday QueryPerformanceCounter]) +AC_CHECK_FUNCS([memalign posix_memalign]) +AC_CHECK_FUNCS([mprotect]) + +# Start of definitions needed by gflags package + +# These are tested for by AC_HEADER_STDC, but I check again to set the var +AC_CHECK_HEADER(stdint.h, ac_cv_have_stdint_h=1, ac_cv_have_stdint_h=0) +AC_CHECK_HEADER(sys/types.h, ac_cv_have_systypes_h=1, ac_cv_have_systypes_h=0) +AC_CHECK_HEADER(inttypes.h, ac_cv_have_inttypes_h=1, ac_cv_have_inttypes_h=0) +AC_CHECK_HEADERS([fnmatch.h]) + +# These are the types I need. We look for them in either stdint.h, +# sys/types.h, or inttypes.h, all of which are part of the default-includes. +AC_CHECK_TYPE(uint16_t, ac_cv_have_uint16_t=1, ac_cv_have_uint16_t=0) +AC_CHECK_TYPE(u_int16_t, ac_cv_have_u_int16_t=1, ac_cv_have_u_int16_t=0) +AC_CHECK_TYPE(__int16, ac_cv_have___int16=1, ac_cv_have___int16=0) + +AC_CHECK_FUNCS([strtoll strtoq]) +AC_CHECK_FUNCS([setenv putenv]) # MinGW has putenv but not setenv + +AX_C___ATTRIBUTE__ +# We only care about __attribute__ ((unused)) +if test x"$ac_cv___attribute__" = x"yes"; then + ac_cv___attribute__unused="__attribute__ ((unused))" +else + ac_cv___attribute__unused= +fi + +ACX_PTHREAD + +# Find out what namespace 'normal' STL code lives in, and also what namespace +# the user wants our classes to be defined in +AC_CXX_STL_NAMESPACE +AC_DEFINE_GOOGLE_NAMESPACE(google) + +# These are what's needed by gflags.h.in +AC_SUBST(ac_google_start_namespace) +AC_SUBST(ac_google_end_namespace) +AC_SUBST(ac_google_namespace) +AC_SUBST(ac_cv___attribute__unused) +AC_SUBST(ac_cv_have_stdint_h) +AC_SUBST(ac_cv_have_systypes_h) +AC_SUBST(ac_cv_have_inttypes_h) +AC_SUBST(ac_cv_have_uint16_t) +AC_SUBST(ac_cv_have_u_int16_t) +AC_SUBST(ac_cv_have___int16) + +# For windows, this has a non-trivial value (__declspec(export)), but any +# system that uses configure wants this to be the empty string. +AC_DEFINE(GFLAGS_DLL_DECL,, + [Always the empty-string on non-windows systems. + On windows, should be "__declspec(dllexport)". + This way, when we compile the dll, we export our functions/classes. + It's safe to define this here because config.h is only used + internally, to compile the DLL, and every DLL source file + #includes "config.h" before anything else.]) + +# End of definitions needed by gflags package + +# Solaris 10 6/06 has a bug where /usr/sfw/lib/libstdc++.la is empty. +# If so, we replace it with our own version. +LIBSTDCXX_LA_LINKER_FLAG= +if test -f /usr/sfw/lib/libstdc++.la && ! test -s /usr/sfw/lib/libstdc++.la +then + LIBSTDCXX_LA_LINKER_FLAG='-L$(top_srcdir)/src/solaris' +fi +AC_SUBST(LIBSTDCXX_LA_LINKER_FLAG) + +AC_CONFIG_FILES([Makefile + gflags/src/gflags/gflags.h + gflags/src/gflags/gflags_completions.h]) +AC_OUTPUT |