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diff --git a/configure.ac b/configure.ac
index 5792425a4948148b5a110346f5b830063dd78914..048a1d4972769184ff857fb7681bc67b2ebdfb99 100644 (file)
--- a/configure.ac
+++ b/configure.ac
AS_HELP_STRING([], [ARG can be prefix for openssl library and headers]),\
GIT_PARSE_WITH(openssl))
#
+# Define USE_LIBPCRE if you have and want to use libpcre. git-grep will be
+# able to use Perl-compatible regular expressions.
+#
+# Define LIBPCREDIR=/foo/bar if your libpcre header and library files are in
+# /foo/bar/include and /foo/bar/lib directories.
+#
+AC_ARG_WITH(libpcre,
+AS_HELP_STRING([--with-libpcre],[support Perl-compatible regexes (default is NO)])
+AS_HELP_STRING([], [ARG can be also prefix for libpcre library and headers]),
+if test "$withval" = "no"; then \
+ USE_LIBPCRE=; \
+elif test "$withval" = "yes"; then \
+ USE_LIBPCRE=YesPlease; \
+else
+ USE_LIBPCRE=YesPlease; \
+ LIBPCREDIR=$withval; \
+ AC_MSG_NOTICE([Setting LIBPCREDIR to $withval]); \
+ GIT_CONF_APPEND_LINE(LIBPCREDIR=$withval); \
+fi \
+)
+#
# Define NO_CURL if you do not have curl installed. git-http-pull and
# git-http-push are not built, and you cannot use http:// and https://
# transports.
AC_CACHE_CHECK([if linker supports -R], git_cv_ld_dashr, [
SAVE_LDFLAGS="${LDFLAGS}"
LDFLAGS="${SAVE_LDFLAGS} -R /"
- AC_LINK_IFELSE(AC_LANG_PROGRAM([], []), [git_cv_ld_dashr=yes], [git_cv_ld_dashr=no])
+ AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])], [git_cv_ld_dashr=yes], [git_cv_ld_dashr=no])
LDFLAGS="${SAVE_LDFLAGS}"
])
if test "$git_cv_ld_dashr" = "yes"; then
AC_CACHE_CHECK([if linker supports -Wl,-rpath,], git_cv_ld_wl_rpath, [
SAVE_LDFLAGS="${LDFLAGS}"
LDFLAGS="${SAVE_LDFLAGS} -Wl,-rpath,/"
- AC_LINK_IFELSE(AC_LANG_PROGRAM([], []), [git_cv_ld_wl_rpath=yes], [git_cv_ld_wl_rpath=no])
+ AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])], [git_cv_ld_wl_rpath=yes], [git_cv_ld_wl_rpath=no])
LDFLAGS="${SAVE_LDFLAGS}"
])
if test "$git_cv_ld_wl_rpath" = "yes"; then
AC_CACHE_CHECK([if linker supports -rpath], git_cv_ld_rpath, [
SAVE_LDFLAGS="${LDFLAGS}"
LDFLAGS="${SAVE_LDFLAGS} -rpath /"
- AC_LINK_IFELSE(AC_LANG_PROGRAM([], []), [git_cv_ld_rpath=yes], [git_cv_ld_rpath=no])
+ AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])], [git_cv_ld_rpath=yes], [git_cv_ld_rpath=no])
LDFLAGS="${SAVE_LDFLAGS}"
])
if test "$git_cv_ld_rpath" = "yes"; then
AC_SUBST(NEEDS_SSL_WITH_CRYPTO)
AC_SUBST(NO_OPENSSL)
+#
+# Define USE_LIBPCRE if you have and want to use libpcre. git-grep will be
+# able to use Perl-compatible regular expressions.
+#
+
+if test -n "$USE_LIBPCRE"; then
+
+GIT_STASH_FLAGS($LIBPCREDIR)
+
+AC_CHECK_LIB([pcre], [pcre_version],
+[USE_LIBPCRE=YesPlease],
+[USE_LIBPCRE=])
+
+GIT_UNSTASH_FLAGS($LIBPCREDIR)
+
+AC_SUBST(USE_LIBPCRE)
+
+fi
+
#
# Define NO_CURL if you do not have libcurl installed. git-http-pull and
# git-http-push are not built, and you cannot use http:// and https://
GIT_STASH_FLAGS($ICONVDIR)
-AC_DEFUN([ICONVTEST_SRC], [
-#include <iconv.h>
-
-int main(void)
-{
- iconv_open("", "");
- return 0;
-}
-])
+AC_DEFUN([ICONVTEST_SRC],
+[AC_LANG_PROGRAM([#include <iconv.h>],
+ [iconv_open("", "");])])
if test -n "$ICONVDIR"; then
lib_order="-liconv -lc"
old_LIBS="$LIBS"
LIBS="$LIBS $l"
AC_MSG_CHECKING([for iconv in $l])
- AC_LINK_IFELSE(ICONVTEST_SRC,
+ AC_LINK_IFELSE([ICONVTEST_SRC],
[AC_MSG_RESULT([yes])
NO_ICONV=
break],
GIT_STASH_FLAGS($ZLIB_PATH)
AC_DEFUN([ZLIBTEST_SRC], [
-#include <zlib.h>
-
-int main(void)
-{
- deflateBound(0, 0);
- return 0;
-}
-])
+AC_LANG_PROGRAM([#include <zlib.h>],
+ [deflateBound(0, 0);])])
AC_MSG_CHECKING([for deflateBound in -lz])
old_LIBS="$LIBS"
LIBS="$LIBS -lz"
-AC_LINK_IFELSE(ZLIBTEST_SRC,
+AC_LINK_IFELSE([ZLIBTEST_SRC],
[AC_MSG_RESULT([yes])],
[AC_MSG_RESULT([no])
NO_DEFLATE_BOUND=yes])
#
# Define OLD_ICONV if your library has an old iconv(), where the second
# (input buffer pointer) parameter is declared with type (const char **).
-AC_DEFUN([OLDICONVTEST_SRC], [[
+AC_DEFUN([OLDICONVTEST_SRC], [
+AC_LANG_PROGRAM([[
#include <iconv.h>
extern size_t iconv(iconv_t cd,
char **inbuf, size_t *inbytesleft,
char **outbuf, size_t *outbytesleft);
-
-int main(void)
-{
- return 0;
-}
-]])
+]], [])])
GIT_STASH_FLAGS($ICONVDIR)
AC_MSG_CHECKING([for old iconv()])
-AC_COMPILE_IFELSE(OLDICONVTEST_SRC,
+AC_COMPILE_IFELSE([OLDICONVTEST_SRC],
[AC_MSG_RESULT([no])],
[AC_MSG_RESULT([yes])
OLD_ICONV=UnfortunatelyYes])
])
AC_SUBST(NO_IPV6)
#
-# Define NO_C99_FORMAT if your formatted IO functions (printf/scanf et.al.)
-# do not support the 'size specifiers' introduced by C99, namely ll, hh,
-# j, z, t. (representing long long int, char, intmax_t, size_t, ptrdiff_t).
-# some C compilers supported these specifiers prior to C99 as an extension.
-AC_CACHE_CHECK([whether formatted IO functions support C99 size specifiers],
- [ac_cv_c_c99_format],
-[# Actually git uses only %z (%zu) in alloc.c, and %t (%td) in mktag.c
-AC_RUN_IFELSE(
- [AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT],
- [[char buf[64];
- if (sprintf(buf, "%lld%hhd%jd%zd%td", (long long int)1, (char)2, (intmax_t)3, (size_t)4, (ptrdiff_t)5) != 5)
- return 1;
- else if (strcmp(buf, "12345"))
- return 2;]])],
- [ac_cv_c_c99_format=yes],
- [ac_cv_c_c99_format=no])
-])
-if test $ac_cv_c_c99_format = no; then
- NO_C99_FORMAT=YesPlease
-else
- NO_C99_FORMAT=
-fi
-AC_SUBST(NO_C99_FORMAT)
-#
# Define NO_REGEX if you have no or inferior regex support in your C library.
AC_CACHE_CHECK([whether the platform regex can handle null bytes],
[ac_cv_c_excellent_regex], [
#
# Define PTHREAD_LIBS to the linker flag used for Pthread support.
AC_DEFUN([PTHREADTEST_SRC], [
+AC_LANG_PROGRAM([[
#include <pthread.h>
-
-int main(void)
-{
+]], [[
pthread_mutex_t test_mutex;
+ pthread_key_t test_key;
int retcode = 0;
+ retcode |= pthread_key_create(&test_key, (void *)0);
retcode |= pthread_mutex_init(&test_mutex,(void *)0);
retcode |= pthread_mutex_lock(&test_mutex);
retcode |= pthread_mutex_unlock(&test_mutex);
return retcode;
-}
-])
+]])])
dnl AC_LANG_CONFTEST([AC_LANG_PROGRAM(
dnl [[#include <pthread.h>]],
old_CFLAGS="$CFLAGS"
CFLAGS="$opt $CFLAGS"
AC_MSG_CHECKING([Checking for POSIX Threads with '$opt'])
- AC_LINK_IFELSE(PTHREADTEST_SRC,
+ AC_LINK_IFELSE([PTHREADTEST_SRC],
[AC_MSG_RESULT([yes])
NO_PTHREADS=
PTHREAD_LIBS="$opt"
old_CFLAGS="$CFLAGS"
CFLAGS="$PTHREAD_CFLAGS $CFLAGS"
AC_MSG_CHECKING([Checking for POSIX Threads with '$PTHREAD_CFLAGS'])
- AC_LINK_IFELSE(PTHREADTEST_SRC,
+ AC_LINK_IFELSE([PTHREADTEST_SRC],
[AC_MSG_RESULT([yes])
NO_PTHREADS=
PTHREAD_LIBS="$PTHREAD_CFLAGS"