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dnl Process this file with autoconf to produce a configure script.
AC_INIT()
AC_PREREQ(2.52)
AC_MSG_NOTICE([Configuring ccache])
AC_CONFIG_HEADER(config.h)
AC_SUBST(extra_deps)
AC_SUBST(include_dev_mk)
AC_SUBST(test_suites)
dnl Checks for programs.
AC_PROG_CC
AC_PROG_CPP
AC_PROG_INSTALL
AC_PROG_RANLIB
AC_CHECK_TOOL(AR, ar)
if test -z "$AR"; then
AC_MSG_ERROR(cannot find ar)
fi
m4_include(m4/feature_macros.m4)
# If GCC, turn on warnings.
if test "x$GCC" = "xyes"; then
CFLAGS="$CFLAGS -Wall -W"
else
CFLAGS="$CFLAGS -O"
fi
AC_HEADER_DIRENT
AC_HEADER_TIME
AC_HEADER_STDBOOL
AC_HEADER_SYS_WAIT
AC_CHECK_TYPES(long long)
AC_CHECK_HEADERS(ctype.h pwd.h stdlib.h string.h strings.h sys/time.h sys/mman.h)
AC_CHECK_HEADERS(termios.h)
AC_CHECK_FUNCS(gethostname)
AC_CHECK_FUNCS(getopt_long)
AC_CHECK_FUNCS(getpwuid)
AC_CHECK_FUNCS(gettimeofday)
AC_CHECK_FUNCS(mkstemp)
AC_CHECK_FUNCS(realpath)
AC_CHECK_FUNCS(strndup)
AC_CHECK_FUNCS(strtok_r)
AC_CHECK_FUNCS(unsetenv)
AC_CHECK_FUNCS(utimes)
AC_CACHE_CHECK([for compar_fn_t in stdlib.h],ccache_cv_COMPAR_FN_T, [
AC_TRY_COMPILE(
[#include <stdlib.h>],
[void test_fn(void) { qsort(NULL, 0, 0, (__compar_fn_t)NULL); }],
ccache_cv_COMPAR_FN_T=yes,
ccache_cv_COMPAR_FN_T=no)])
if test x"$ccache_cv_COMPAR_FN_T" = x"yes"; then
AC_DEFINE(HAVE_COMPAR_FN_T, 1,
Define to 1 if you have the `__compar_fn_t' typedef.)
fi
dnl Replacements of snprintf and friends.
m4_include(m4/snprintf.m4)
HW_FUNC_VSNPRINTF
HW_FUNC_SNPRINTF
HW_FUNC_VASPRINTF
HW_FUNC_ASPRINTF
dnl Check if -lm is needed.
AC_SEARCH_LIBS(cos, m)
dnl Check for zlib.
AC_CACHE_CHECK(
[for zlib >= 1.2.3],
[ccache_cv_zlib_1_2_3],
AC_TRY_COMPILE(
[#include <zlib.h>],
[
#if (ZLIB_VERNUM >= 0x1230)
#else
#error "ZLIB_VERNUM < 0x1230"
#endif
],
[ccache_cv_zlib_1_2_3=yes],
[ccache_cv_zlib_1_2_3=no]))
AC_CHECK_LIB(z, gzdopen, true)
if test $ccache_cv_zlib_1_2_3 = yes && test $ac_cv_lib_z_gzdopen = yes; then
use_bundled_zlib=no
else
use_bundled_zlib=yes
extra_deps="zlib/libz.a"
CPPFLAGS="$CPPFLAGS -I\$(srcdir)/zlib"
LIBS="-Lzlib $LIBS"
mkdir -p zlib
fi
AC_C_INLINE
dnl Check for "extern inline".
AC_CACHE_CHECK(
for extern inline,
ac_cv_c_extern_inline,
[
ac_cv_c_extern_inline=no
AC_TRY_COMPILE(
[
extern $ac_cv_c_inline double foo(double x);
extern $ac_cv_c_inline double foo(double x) { return x+1.0; };
double foo (double x) { return x + 1.0; };
],
[foo(1.0)],
[ac_cv_c_extern_inline="yes"])])
if test "$ac_cv_c_extern_inline" != no ; then
AC_DEFINE(HAVE_EXTERN_INLINE, 1,
Define to 1 if your compiler supports extern inline)
fi
dnl Enable developer mode if dev.mk.in exists.
if test -f $srcdir/dev.mk.in && test "$RUN_FROM_BUILD_FARM" != yes; then
AC_MSG_NOTICE(Enabling developer mode)
AC_CONFIG_FILES([dev.mk])
include_dev_mk='include dev.mk'
version=`(git describe --dirty 2>/dev/null || echo vunknown) | sed -e 's/v//' -e 's/-/+/' -e 's/-/_/g'`
echo "const char CCACHE_VERSION@<:@@:>@ = \"$version\";" >version.c
elif test ! -f $srcdir/version.c; then
AC_MSG_WARN(unable to determine ccache version)
echo "const char CCACHE_VERSION@<:@@:>@ = \"unknown\";" >version.c
fi
dnl Find test suite files.
test_suites=""
for x in $srcdir/test/test_*.c; do
test_suites="$test_suites $x"
done
AC_CONFIG_FILES([Makefile])
AC_OUTPUT
cat <<EOF >config.h.tmp
#ifndef CCACHE_CONFIG_H
#define CCACHE_CONFIG_H
EOF
cat config.h >>config.h.tmp
echo '#endif' >>config.h.tmp
mv config.h.tmp config.h
mkdir -p .deps test
if test x$use_bundled_zlib = xyes; then
AC_MSG_WARN(using bundled zlib)
fi
AC_MSG_NOTICE(now build ccache by running make)
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