From: David M. Syzdek <david.syzdek@xxxxxxxxxxxxx>
Sets the value of PTHREAD_LIBS to the correct flags for linking pthreads on
the current environment. If the correct flags can be determined then
THREADED_DELTA_SEARCH is set. If the correct flags cannot be determined,
then THREADED_DELTA_SEARCH is unset.
Signed-off-by: David M. Syzdek <david.syzdek@xxxxxxxxxxxxx>
---
config.mak.in | 2 ++
configure.ac | 20 ++++++++++++++++++++
2 files changed, 22 insertions(+), 0 deletions(-)
diff --git a/config.mak.in b/config.mak.in
index 7170729..3d3fbcd 100644
--- a/config.mak.in
+++ b/config.mak.in
@@ -51,3 +51,5 @@ OLD_ICONV=@OLD_ICONV@
NO_DEFLATE_BOUND=@NO_DEFLATE_BOUND@
FREAD_READS_DIRECTORIES=@FREAD_READS_DIRECTORIES@
SNPRINTF_RETURNS_BOGUS=@SNPRINTF_RETURNS_BOGUS@
+THREADED_DELTA_SEARCH=@THREADED_DELTA_SEARCH@
+PTHREAD_LIBS=@PTHREAD_LIBS@
diff --git a/configure.ac b/configure.ac
index 9dfc0d3..3bf5d15 100644
--- a/configure.ac
+++ b/configure.ac
@@ -489,6 +489,26 @@ AC_SUBST(NO_MKDTEMP)
#
# Define NO_SYMLINK_HEAD if you never want .git/HEAD to be a symbolic link.
# Enable it on Windows. By default, symrefs are still used.
+#
+# 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.h>]],
+ [[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
+else
+ ${CC} -lpthread conftest.c -o conftest.o > /dev/null 2>&1
+ if test $? -eq 0;then
+ PTHREAD_LIBS="-lpthread"
+ THREADED_DELTA_SEARCH=YesPlease
+ fi
+fi
+AC_SUBST(PTHREAD_LIBS)
+AC_SUBST(THREADED_DELTA_SEARCH)
## Site configuration (override autodetection)
## --with-PACKAGE[=ARG] and --without-PACKAGE
--
1.6.0.2.GIT
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