From e068f4f53b22c64f2058c316d858a892a5e24a6e Mon Sep 17 00:00:00 2001 From: Ben Walton Date: Thu, 12 Mar 2009 15:20:06 -0400 Subject: [PATCH 1/7] configure: ensure settings from user are also usable in the script Allow things set by the user (--with-lib, --with-iconv, etc) to set variables for use by other parts of the script. Display values as they're set. Signed-off-by: Ben Walton Signed-off-by: Junio C Hamano --- configure.ac | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/configure.ac b/configure.ac index 082a03d3cf..0b314d7359 100644 --- a/configure.ac +++ b/configure.ac @@ -42,6 +42,8 @@ else \ if test "$withval" = "yes"; then \ AC_MSG_WARN([You should provide path for --with-$1=PATH]); \ else \ + m4_toupper($1)_PATH=$withval; \ + AC_MSG_NOTICE([Setting m4_toupper($1)_PATH to $withval]); \ GIT_CONF_APPEND_LINE(${PROGRAM}_PATH=$withval); \ fi; \ fi; \ @@ -61,6 +63,8 @@ elif test "$withval" = "yes"; then \ m4_toupper(NO_$1)=; \ else \ m4_toupper(NO_$1)=; \ + m4_toupper($1)DIR=$withval; \ + AC_MSG_NOTICE([Setting m4_toupper($1)DIR to $withval]); \ GIT_CONF_APPEND_LINE(${PACKAGE}DIR=$withval); \ fi \ ])# GIT_PARSE_WITH @@ -86,9 +90,16 @@ AC_ARG_WITH([lib], [if test "$withval" = "no" || test "$withval" = "yes"; then \ AC_MSG_WARN([You should provide name for --with-lib=ARG]); \ else \ + lib=$withval; \ + AC_MSG_NOTICE([Setting lib to '$lib']); \ GIT_CONF_APPEND_LINE(lib=$withval); \ fi; \ ],[]) + +if test -z "$lib"; then + AC_MSG_NOTICE([Setting lib to 'lib' (the default)]) + lib=lib +fi # # Define SHELL_PATH to provide path to shell. GIT_ARG_SET_PATH(shell) From 08df6a3086f4bcd5b224d442f103a7f63a605967 Mon Sep 17 00:00:00 2001 From: Ben Walton Date: Thu, 12 Mar 2009 15:20:07 -0400 Subject: [PATCH 2/7] configure: reorganize flow of argument checks Move the argument tests from the 'site overrides' so that they are ahead of any library tests. This allows for library tests to take user specified paths into account. The intent here is to avoid things like NO_DEFLATE_BOUND being set due to finding old zlib when the user has specified an alternate location for zlib. (Ignore the fact that properly set *FLAGS can avoid solve this issue.) Signed-off-by: Ben Walton Signed-off-by: Junio C Hamano --- configure.ac | 174 +++++++++++++++++++++++++-------------------------- 1 file changed, 87 insertions(+), 87 deletions(-) diff --git a/configure.ac b/configure.ac index 0b314d7359..0bff4808c0 100644 --- a/configure.ac +++ b/configure.ac @@ -100,6 +100,93 @@ if test -z "$lib"; then AC_MSG_NOTICE([Setting lib to 'lib' (the default)]) lib=lib fi + +## Site configuration (override autodetection) +## --with-PACKAGE[=ARG] and --without-PACKAGE +AC_MSG_NOTICE([CHECKS for site configuration]) +# +# Define NO_SVN_TESTS if you want to skip time-consuming SVN interoperability +# tests. These tests take up a significant amount of the total test time +# but are not needed unless you plan to talk to SVN repos. +# +# Define MOZILLA_SHA1 environment variable when running make to make use of +# a bundled SHA1 routine coming from Mozilla. It is GPL'd and should be fast +# on non-x86 architectures (e.g. PowerPC), while the OpenSSL version (default +# choice) has very fast version optimized for i586. +# +# Define PPC_SHA1 environment variable when running make to make use of +# a bundled SHA1 routine optimized for PowerPC. +# +# Define ARM_SHA1 environment variable when running make to make use of +# a bundled SHA1 routine optimized for ARM. +# +# Define NO_OPENSSL environment variable if you do not have OpenSSL. +# This also implies MOZILLA_SHA1. +# +# Define OPENSSLDIR=/foo/bar if your openssl header and library files are in +# /foo/bar/include and /foo/bar/lib directories. +AC_ARG_WITH(openssl, +AS_HELP_STRING([--with-openssl],[use OpenSSL library (default is YES)]) +AS_HELP_STRING([], [ARG can be prefix for openssl library and headers]),\ +GIT_PARSE_WITH(openssl)) +# +# 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. +# +# Define CURLDIR=/foo/bar if your curl header and library files are in +# /foo/bar/include and /foo/bar/lib directories. +AC_ARG_WITH(curl, +AS_HELP_STRING([--with-curl],[support http(s):// transports (default is YES)]) +AS_HELP_STRING([], [ARG can be also prefix for curl library and headers]), +GIT_PARSE_WITH(curl)) +# +# Define NO_EXPAT if you do not have expat installed. git-http-push is +# not built, and you cannot push using http:// and https:// transports. +# +# Define EXPATDIR=/foo/bar if your expat header and library files are in +# /foo/bar/include and /foo/bar/lib directories. +AC_ARG_WITH(expat, +AS_HELP_STRING([--with-expat], +[support git-push using http:// and https:// transports via WebDAV (default is YES)]) +AS_HELP_STRING([], [ARG can be also prefix for expat library and headers]), +GIT_PARSE_WITH(expat)) +# +# Define NO_FINK if you are building on Darwin/Mac OS X, have Fink +# installed in /sw, but don't want GIT to link against any libraries +# installed there. If defined you may specify your own (or Fink's) +# include directories and library directories by defining CFLAGS +# and LDFLAGS appropriately. +# +# Define NO_DARWIN_PORTS if you are building on Darwin/Mac OS X, +# have DarwinPorts installed in /opt/local, but don't want GIT to +# link against any libraries installed there. If defined you may +# specify your own (or DarwinPort's) include directories and +# library directories by defining CFLAGS and LDFLAGS appropriately. +# +# Define NO_MMAP if you want to avoid mmap. +# +# Define NO_ICONV if your libc does not properly support iconv. +AC_ARG_WITH(iconv, +AS_HELP_STRING([--without-iconv], +[if your architecture doesn't properly support iconv]) +AS_HELP_STRING([--with-iconv=PATH], +[PATH is prefix for libiconv library and headers]) +AS_HELP_STRING([], +[used only if you need linking with libiconv]), +GIT_PARSE_WITH(iconv)) + +## --enable-FEATURE[=ARG] and --disable-FEATURE +# +# Define USE_NSEC below if you want git to care about sub-second file mtimes +# and ctimes. Note that you need recent glibc (at least 2.2.4) for this, and +# it will BREAK YOUR LOCAL DIFFS! show-diff and anything using it will likely +# randomly break unless your underlying filesystem supports those sub-second +# times (my ext3 doesn't). +# +# Define USE_STDEV below if you want git to care about the underlying device +# change being considered an inode change from the update-index perspective. + # # Define SHELL_PATH to provide path to shell. GIT_ARG_SET_PATH(shell) @@ -526,93 +613,6 @@ AC_SUBST(PTHREAD_LIBS) AC_SUBST(NO_PTHREADS) AC_SUBST(THREADED_DELTA_SEARCH) -## Site configuration (override autodetection) -## --with-PACKAGE[=ARG] and --without-PACKAGE -AC_MSG_NOTICE([CHECKS for site configuration]) -# -# Define NO_SVN_TESTS if you want to skip time-consuming SVN interoperability -# tests. These tests take up a significant amount of the total test time -# but are not needed unless you plan to talk to SVN repos. -# -# Define MOZILLA_SHA1 environment variable when running make to make use of -# a bundled SHA1 routine coming from Mozilla. It is GPL'd and should be fast -# on non-x86 architectures (e.g. PowerPC), while the OpenSSL version (default -# choice) has very fast version optimized for i586. -# -# Define PPC_SHA1 environment variable when running make to make use of -# a bundled SHA1 routine optimized for PowerPC. -# -# Define ARM_SHA1 environment variable when running make to make use of -# a bundled SHA1 routine optimized for ARM. -# -# Define NO_OPENSSL environment variable if you do not have OpenSSL. -# This also implies MOZILLA_SHA1. -# -# Define OPENSSLDIR=/foo/bar if your openssl header and library files are in -# /foo/bar/include and /foo/bar/lib directories. -AC_ARG_WITH(openssl, -AS_HELP_STRING([--with-openssl],[use OpenSSL library (default is YES)]) -AS_HELP_STRING([], [ARG can be prefix for openssl library and headers]),\ -GIT_PARSE_WITH(openssl)) -# -# 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. -# -# Define CURLDIR=/foo/bar if your curl header and library files are in -# /foo/bar/include and /foo/bar/lib directories. -AC_ARG_WITH(curl, -AS_HELP_STRING([--with-curl],[support http(s):// transports (default is YES)]) -AS_HELP_STRING([], [ARG can be also prefix for curl library and headers]), -GIT_PARSE_WITH(curl)) -# -# Define NO_EXPAT if you do not have expat installed. git-http-push is -# not built, and you cannot push using http:// and https:// transports. -# -# Define EXPATDIR=/foo/bar if your expat header and library files are in -# /foo/bar/include and /foo/bar/lib directories. -AC_ARG_WITH(expat, -AS_HELP_STRING([--with-expat], -[support git-push using http:// and https:// transports via WebDAV (default is YES)]) -AS_HELP_STRING([], [ARG can be also prefix for expat library and headers]), -GIT_PARSE_WITH(expat)) -# -# Define NO_FINK if you are building on Darwin/Mac OS X, have Fink -# installed in /sw, but don't want GIT to link against any libraries -# installed there. If defined you may specify your own (or Fink's) -# include directories and library directories by defining CFLAGS -# and LDFLAGS appropriately. -# -# Define NO_DARWIN_PORTS if you are building on Darwin/Mac OS X, -# have DarwinPorts installed in /opt/local, but don't want GIT to -# link against any libraries installed there. If defined you may -# specify your own (or DarwinPort's) include directories and -# library directories by defining CFLAGS and LDFLAGS appropriately. -# -# Define NO_MMAP if you want to avoid mmap. -# -# Define NO_ICONV if your libc does not properly support iconv. -AC_ARG_WITH(iconv, -AS_HELP_STRING([--without-iconv], -[if your architecture doesn't properly support iconv]) -AS_HELP_STRING([--with-iconv=PATH], -[PATH is prefix for libiconv library and headers]) -AS_HELP_STRING([], -[used only if you need linking with libiconv]), -GIT_PARSE_WITH(iconv)) - -## --enable-FEATURE[=ARG] and --disable-FEATURE -# -# Define USE_NSEC below if you want git to care about sub-second file mtimes -# and ctimes. Note that you need recent glibc (at least 2.2.4) for this, and -# it will BREAK YOUR LOCAL DIFFS! show-diff and anything using it will likely -# randomly break unless your underlying filesystem supports those sub-second -# times (my ext3 doesn't). -# -# Define USE_STDEV below if you want git to care about the underlying device -# change being considered an inode change from the update-index perspective. - - ## Output files AC_CONFIG_FILES(["${config_file}":"${config_in}":"${config_append}"]) AC_OUTPUT From 918c8120172514704809cbdf889794d8b1345d0a Mon Sep 17 00:00:00 2001 From: Ben Walton Date: Thu, 12 Mar 2009 15:20:08 -0400 Subject: [PATCH 3/7] configure: add macros to stash FLAG variables Allow for quick stash/unstash of CPPFLAGS and LDFLAGS. Library tests can now be easily bracketted with these macros to allow for values set in user/site arguments. Signed-off-by: Ben Walton Signed-off-by: Junio C Hamano --- configure.ac | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) diff --git a/configure.ac b/configure.ac index 0bff4808c0..469c9a98d2 100644 --- a/configure.ac +++ b/configure.ac @@ -80,6 +80,32 @@ AC_DEFUN([GIT_CHECK_FUNC],[AC_CHECK_FUNC([$1],[ AC_SEARCH_LIBS([$1],, [$2],[$3]) ],[$3])]) + +dnl +dnl GIT_STASH_FLAGS(BASEPATH_VAR) +dnl ----------------------------- +dnl Allow for easy stashing of LDFLAGS and CPPFLAGS before running +dnl tests that may want to take user settings into account. +AC_DEFUN([GIT_STASH_FLAGS],[ +if test -n "$1"; then + old_CPPFLAGS="$CPPFLAGS" + old_LDFLAGS="$LDFLAGS" + CPPFLAGS="-I$1/include $CPPFLAGS" + LDFLAGS="-L$1/$lib $LDFLAGS" +fi +]) + +dnl +dnl GIT_UNSTASH_FLAGS(BASEPATH_VAR) +dnl ----------------------------- +dnl Restore the stashed *FLAGS values. +AC_DEFUN([GIT_UNSTASH_FLAGS],[ +if test -n "$1"; then + CPPFLAGS="$old_CPPFLAGS" + LDFLAGS="$old_LDFLAGS" +fi +]) + ## Site configuration related to programs (before tests) ## --with-PACKAGE[=ARG] and --without-PACKAGE # From 310386f07b5ef3dc337db1be37345fbd8d7a3af8 Mon Sep 17 00:00:00 2001 From: Ben Walton Date: Thu, 12 Mar 2009 15:20:09 -0400 Subject: [PATCH 4/7] configure: wrap some library tests with GIT_STASH_FLAGS Libraries that can have user specificed base paths are wrapped with GIT_STASH_FLAGS/GIT_UNSTASH_FLAGS to ensure that the proper versions on the system are tested. This ensures, for example, that the zlib tests for deflateUnbound are done with the version of zlib requested by the user. This is most useful in the absence of good settings for CPPFLAGS and/or LDFLAGS. Signed-off-by: Ben Walton Signed-off-by: Junio C Hamano --- configure.ac | 36 +++++++++++++++++++++++++++++++++++- 1 file changed, 35 insertions(+), 1 deletion(-) diff --git a/configure.ac b/configure.ac index 469c9a98d2..fe9d7eb463 100644 --- a/configure.ac +++ b/configure.ac @@ -315,33 +315,57 @@ AC_MSG_NOTICE([CHECKS for libraries]) # # Define NO_OPENSSL environment variable if you do not have OpenSSL. # Define NEEDS_SSL_WITH_CRYPTO if you need -lcrypto with -lssl (Darwin). + +GIT_STASH_FLAGS($OPENSSLDIR) + AC_CHECK_LIB([crypto], [SHA1_Init], [NEEDS_SSL_WITH_CRYPTO=], [AC_CHECK_LIB([ssl], [SHA1_Init], [NEEDS_SSL_WITH_CRYPTO=YesPlease NEEDS_SSL_WITH_CRYPTO=], [NO_OPENSSL=YesPlease])]) + +GIT_UNSTASH_FLAGS($OPENSSLDIR) + AC_SUBST(NEEDS_SSL_WITH_CRYPTO) AC_SUBST(NO_OPENSSL) + # # Define NO_CURL if you do not have libcurl installed. git-http-pull and # git-http-push are not built, and you cannot use http:// and https:// # transports. + +GIT_STASH_FLAGS($CURLDIR) + AC_CHECK_LIB([curl], [curl_global_init], [NO_CURL=], [NO_CURL=YesPlease]) + +GIT_UNSTASH_FLAGS($CURLDIR) + AC_SUBST(NO_CURL) + # # Define NO_EXPAT if you do not have expat installed. git-http-push is # not built, and you cannot push using http:// and https:// transports. + +GIT_STASH_FLAGS($EXPATDIR) + AC_CHECK_LIB([expat], [XML_ParserCreate], [NO_EXPAT=], [NO_EXPAT=YesPlease]) + +GIT_UNSTASH_FLAGS($EXPATDIR) + AC_SUBST(NO_EXPAT) + # # Define NEEDS_LIBICONV if linking with libc is not enough (Darwin and # some Solaris installations). # Define NO_ICONV if neither libc nor libiconv support iconv. + +GIT_STASH_FLAGS($ICONVDIR) + AC_DEFUN([ICONVTEST_SRC], [ #include @@ -365,11 +389,17 @@ AC_LINK_IFELSE(ICONVTEST_SRC, [AC_MSG_RESULT([no]) NO_ICONV=YesPlease]) LIBS="$old_LIBS"]) + +GIT_UNSTASH_FLAGS($ICONVDIR) + AC_SUBST(NEEDS_LIBICONV) AC_SUBST(NO_ICONV) -test -n "$NEEDS_LIBICONV" && LIBS="$LIBS -liconv" + # # Define NO_DEFLATE_BOUND if deflateBound is missing from zlib. + +GIT_STASH_FLAGS($ZLIB_PATH) + AC_DEFUN([ZLIBTEST_SRC], [ #include @@ -387,7 +417,11 @@ AC_LINK_IFELSE(ZLIBTEST_SRC, [AC_MSG_RESULT([no]) NO_DEFLATE_BOUND=yes]) LIBS="$old_LIBS" + +GIT_UNSTASH_FLAGS($ZLIB_PATH) + AC_SUBST(NO_DEFLATE_BOUND) + # # Define NEEDS_SOCKET if linking with libc is not enough (SunOS, # Patrick Mauritz). From 29adc8baf997e143d8aeac9a0aeb257539d32e6d Mon Sep 17 00:00:00 2001 From: Ben Walton Date: Thu, 12 Mar 2009 15:20:10 -0400 Subject: [PATCH 5/7] configure: asciidoc version test cleanup Redirect stderr to /dev/null instead of stdout. This discards warnings generated by python 2.6 related to the reorganization of functions within modules. The warnings were causing the version detection to break. Signed-off-by: Ben Walton Signed-off-by: Junio C Hamano --- configure.ac | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/configure.ac b/configure.ac index fe9d7eb463..f4b8e49dc3 100644 --- a/configure.ac +++ b/configure.ac @@ -291,7 +291,7 @@ fi AC_CHECK_PROGS(ASCIIDOC, [asciidoc]) if test -n "$ASCIIDOC"; then AC_MSG_CHECKING([for asciidoc version]) - asciidoc_version=`$ASCIIDOC --version 2>&1` + asciidoc_version=`$ASCIIDOC --version 2>/dev/null` case "${asciidoc_version}" in asciidoc' '8*) ASCIIDOC8=YesPlease From a8304f7a70832a8e333fcf547589bc9d3bc0ca3c Mon Sep 17 00:00:00 2001 From: Ben Walton Date: Thu, 12 Mar 2009 15:20:11 -0400 Subject: [PATCH 6/7] configure: make iconv tests aware of user arguments --with-iconv is now taken into account when doing the tests for iconv. If the user requests alternate handling for libiconv, the -liconv test is run before the -lc test. Signed-off-by: Ben Walton Signed-off-by: Junio C Hamano --- configure.ac | 48 ++++++++++++++++++++++++++++++++++-------------- 1 file changed, 34 insertions(+), 14 deletions(-) diff --git a/configure.ac b/configure.ac index f4b8e49dc3..6fe4bfe738 100644 --- a/configure.ac +++ b/configure.ac @@ -375,20 +375,35 @@ int main(void) return 0; } ]) -AC_MSG_CHECKING([for iconv in -lc]) -AC_LINK_IFELSE(ICONVTEST_SRC, + +if test -n "$ICONVDIR"; then + lib_order="-liconv -lc" +else + lib_order="-lc -liconv" +fi + +NO_ICONV=YesPlease + +for l in $lib_order; do + if test "$l" = "-liconv"; then + NEEDS_LIBICONV=YesPlease + else + NEEDS_LIBICONV= + fi + + old_LIBS="$LIBS" + LIBS="$LIBS $l" + AC_MSG_CHECKING([for iconv in $l]) + AC_LINK_IFELSE(ICONVTEST_SRC, [AC_MSG_RESULT([yes]) - NEEDS_LIBICONV=], - [AC_MSG_RESULT([no]) - old_LIBS="$LIBS" - LIBS="$LIBS -liconv" - AC_MSG_CHECKING([for iconv in -liconv]) - AC_LINK_IFELSE(ICONVTEST_SRC, - [AC_MSG_RESULT([yes]) - NEEDS_LIBICONV=YesPlease], - [AC_MSG_RESULT([no]) - NO_ICONV=YesPlease]) - LIBS="$old_LIBS"]) + NO_ICONV= + break], + [AC_MSG_RESULT([no])]) + LIBS="$old_LIBS" +done + +#in case of break +LIBS="$old_LIBS" GIT_UNSTASH_FLAGS($ICONVDIR) @@ -455,13 +470,18 @@ int main(void) return 0; } ]]) + +GIT_STASH_FLAGS($ICONVDIR) + AC_MSG_CHECKING([for old iconv()]) AC_COMPILE_IFELSE(OLDICONVTEST_SRC, [AC_MSG_RESULT([no])], [AC_MSG_RESULT([yes]) OLD_ICONV=UnfortunatelyYes]) -AC_SUBST(OLD_ICONV) +GIT_UNSTASH_FLAGS($ICONVDIR) + +AC_SUBST(OLD_ICONV) ## Checks for typedefs, structures, and compiler characteristics. AC_MSG_NOTICE([CHECKS for typedefs, structures, and compiler characteristics]) From 1973b0d790155b5d8a32a6f7401116fad2205721 Mon Sep 17 00:00:00 2001 From: Ben Walton Date: Thu, 12 Mar 2009 15:20:12 -0400 Subject: [PATCH 7/7] configure: rework pthread handling to allow for user defined flags The tests for POSIX threads can now be controlled by the user with the --enable-pthreads=FLAGS option. If this is set (to some value other than yes or no), the value is passed to the compiler. Thread support is based solely on the outcome of this test. The user may specify not to use threading at all or to use the default tests (first -pthread then -lpthread) by not specifying FLAGS when passing --enable-pthreads. Signed-off-by: Ben Walton Signed-off-by: Junio C Hamano --- configure.ac | 89 +++++++++++++++++++++++++++++++++++++++++++--------- 1 file changed, 74 insertions(+), 15 deletions(-) diff --git a/configure.ac b/configure.ac index 6fe4bfe738..4e728bca35 100644 --- a/configure.ac +++ b/configure.ac @@ -127,6 +127,27 @@ if test -z "$lib"; then lib=lib fi +AC_ARG_ENABLE([pthreads], + [AS_HELP_STRING([--enable-pthreads=FLAGS], + [FLAGS is the value to pass to the compiler to enable POSIX Threads.] + [The default if FLAGS is not specified is to try first -pthread] + [and then -lpthread.] + [--without-pthreads will disable threading.])], +[ +if test "x$enableval" = "xyes"; then + AC_MSG_NOTICE([Will try -pthread then -lpthread to enable POSIX Threads]) +elif test "x$enableval" != "xno"; then + PTHREAD_CFLAGS=$enableval + AC_MSG_NOTICE([Setting '$PTHREAD_CFLAGS' as the FLAGS to enable POSIX Threads]) +else + AC_MSG_NOTICE([POSIX Threads will be disabled.]) + NO_PTHREADS=YesPlease + USER_NOPTHREAD=1 +fi], +[ + AC_MSG_NOTICE([Will try -pthread then -lpthread to enable POSIX Threads.]) +]) + ## Site configuration (override autodetection) ## --with-PACKAGE[=ARG] and --without-PACKAGE AC_MSG_NOTICE([CHECKS for site configuration]) @@ -672,23 +693,61 @@ AC_SUBST(NO_MKDTEMP) # # Define PTHREAD_LIBS to the linker flag used for Pthread support and define # THREADED_DELTA_SEARCH if Pthreads are available. -AC_LANG_CONFTEST([AC_LANG_PROGRAM( - [[#include ]], - [[pthread_mutex_t test_mutex;]] -)]) -${CC} -pthread conftest.c -o conftest.o > /dev/null 2>&1 -if test $? -eq 0;then - PTHREAD_LIBS="-pthread" - THREADED_DELTA_SEARCH=YesPlease +AC_DEFUN([PTHREADTEST_SRC], [ +#include + +int main(void) +{ + pthread_mutex_t test_mutex; + return (0); +} +]) + +dnl AC_LANG_CONFTEST([AC_LANG_PROGRAM( +dnl [[#include ]], +dnl [[pthread_mutex_t test_mutex;]] +dnl )]) + +NO_PTHREADS=UnfortunatelyYes +THREADED_DELTA_SEARCH= +PTHREAD_LIBS= + +if test -n "$USER_NOPTHREAD"; then + AC_MSG_NOTICE([Skipping POSIX Threads at user request.]) +# handle these separately since PTHREAD_CFLAGS could be '-lpthreads +# -D_REENTRANT' or some such. +elif test -z "$PTHREAD_CFLAGS"; then + for opt in -pthread -lpthread; do + old_CFLAGS="$CFLAGS" + CFLAGS="$opt $CFLAGS" + AC_MSG_CHECKING([Checking for POSIX Threads with '$opt']) + AC_LINK_IFELSE(PTHREADTEST_SRC, + [AC_MSG_RESULT([yes]) + NO_PTHREADS= + PTHREAD_LIBS="$opt" + THREADED_DELTA_SEARCH=YesPlease + break + ], + [AC_MSG_RESULT([no])]) + CFLAGS="$old_CFLAGS" + done else - ${CC} -lpthread conftest.c -o conftest.o > /dev/null 2>&1 - if test $? -eq 0;then - PTHREAD_LIBS="-lpthread" - THREADED_DELTA_SEARCH=YesPlease - else - NO_PTHREADS=UnfortunatelyYes - fi + old_CFLAGS="$CFLAGS" + CFLAGS="$PTHREAD_CFLAGS $CFLAGS" + AC_MSG_CHECKING([Checking for POSIX Threads with '$PTHREAD_CFLAGS']) + AC_LINK_IFELSE(PTHREADTEST_SRC, + [AC_MSG_RESULT([yes]) + NO_PTHREADS= + PTHREAD_LIBS="$PTHREAD_CFLAGS" + THREADED_DELTA_SEARCH=YesPlease + ], + [AC_MSG_RESULT([no])]) + + CFLAGS="$old_CFLAGS" fi + +CFLAGS="$old_CFLAGS" + AC_SUBST(PTHREAD_LIBS) AC_SUBST(NO_PTHREADS) AC_SUBST(THREADED_DELTA_SEARCH)