From d476bdfe3e353a0cf93c0c2a6e05d4eaa695026d Mon Sep 17 00:00:00 2001
From: caro <caro>
Date: Wed, 30 Dec 2009 00:02:48 +0000
Subject: [PATCH]  * better m4 code  * use latest efl_pthread.m4 code and
 update configure.ac accordingly

git-svn-id: http://svn.enlightenment.org/svn/e/trunk/eet@44771 7cbeb6ba-43b4-40fd-8cce-4c39aea84d33
---
 configure.ac       |  2 +-
 m4/efl_coverage.m4 |  8 ++------
 m4/efl_doxygen.m4  | 11 ++++-------
 m4/efl_pthread.m4  | 46 ++++++++++++++++++++++++++++++++++++++++------
 m4/efl_tests.m4    |  6 +-----
 5 files changed, 48 insertions(+), 25 deletions(-)

diff --git a/configure.ac b/configure.ac
index 591954c..99e93e1 100644
--- a/configure.ac
+++ b/configure.ac
@@ -274,7 +274,7 @@ AC_MSG_RESULT(${have_signature})
 
 # pthread library
 
-EFL_CHECK_PTHREAD([have_pthread="yes"], [have_pthread="no"])
+EFL_CHECK_PTHREAD(["no"], [have_pthread="yes"], [have_pthread="no"])
 
 
 ### Checks for header files
diff --git a/m4/efl_coverage.m4 b/m4/efl_coverage.m4
index baf0002..85d0321 100644
--- a/m4/efl_coverage.m4
+++ b/m4/efl_coverage.m4
@@ -31,7 +31,7 @@ AC_MSG_RESULT([$_efl_enable_coverage])
 
 dnl lcov check
 
-if test ! "x$1" = "xyes" -a "x$_efl_enable_coverage" = "xyes" ; then
+if test "x$_efl_enable_coverage" = "xyes" && test ! "x$1" = "xyes" ; then
    AC_MSG_WARN([Coverage report requested but tests not being built, disable profiling instrumentation.])
    AC_MSG_WARN([Run configure with --enable-tests])
    _efl_enable_coverage="no"
@@ -56,11 +56,7 @@ AC_SUBST(EFL_COVERAGE_LIBS)
 
 AM_CONDITIONAL(EFL_ENABLE_COVERAGE, test "x${_efl_enable_coverage}" = "xyes")
 
-if test "x${_efl_enable_coverage}" = "xyes" ; then
-   m4_default([$2], [:])
-else
-   m4_default([$3], [:])
-fi
+AS_IF([test "x$_efl_enable_coverage" = "xyes"], [$2], [$3])
 ])
 
 dnl End of efl_coverage.m4
diff --git a/m4/efl_doxygen.m4 b/m4/efl_doxygen.m4
index d83ed68..7324af3 100644
--- a/m4/efl_doxygen.m4
+++ b/m4/efl_doxygen.m4
@@ -73,6 +73,8 @@ dnl Check the given doxygen program.
           AC_MSG_WARN([no doxygen detected. Documentation will not be built])
        fi
       ])
+else
+   efl_have_doxygen="no"
 fi
 
 dnl
@@ -84,14 +86,9 @@ if ! test "x${efl_have_doxygen}" = "xyes" ; then
    efl_enable_doc="no"
 fi
 
-AM_CONDITIONAL(EFL_BUILD_DOC, test "x${efl_enable_doc}" = "xyes")
-
-if test "x${efl_enable_doc}" = "xyes" ; then
-  m4_default([$1], [:])
-else
-  m4_default([$2], [:])
-fi
+AM_CONDITIONAL(EFL_BUILD_DOC, test "x${efl_have_doxygen}" = "xyes")
 
+AS_IF([test "x$efl_have_doxygen" = "xyes"], [$1], [$2])
 ])
 
 dnl End of efl_doxygen.m4
diff --git a/m4/efl_pthread.m4 b/m4/efl_pthread.m4
index 7bd341c..384b7ae 100644
--- a/m4/efl_pthread.m4
+++ b/m4/efl_pthread.m4
@@ -3,7 +3,7 @@ dnl That code is public domain and can be freely used or copied.
 
 dnl Macro that check if several ASM instruction sets are available or not.
 
-dnl Usage: EFL_CHECK_EFL_CHECK_PTHREAD([ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]])
+dnl Usage: EFL_CHECK_EFL_CHECK_PTHREAD(want_pthread_spin[, ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]])
 dnl Call AC_SUBST(EFL_PTHREAD_FLAGS)
 dnl Define EFL_HAVE_PTHREAD
 
@@ -31,9 +31,18 @@ dnl check if the compiler supports pthreads
 _efl_have_pthread="no"
 
 if test "x${_efl_enable_pthread}" = "xyes" ; then
-   AC_CHECK_HEADER(pthread.h,
+
+   AC_COMPILE_IFELSE(
+      [AC_LANG_PROGRAM([[
+#include <pthread.h>
+                       ]],
+                       [[
+pthread_t id;
+id = pthread_self();
+                       ]])],
       [_efl_have_pthread="yes"],
       [_efl_have_pthread="no"])
+
 fi
 
 AC_MSG_CHECKING([whether system support POSIX threads])
@@ -63,9 +72,34 @@ if test "x${_efl_have_pthread}" = "xyes" ; then
    AC_DEFINE(EFL_HAVE_PTHREAD, 1, [Define to mention that POSIX threads are supported])
 fi
 
-if test "x${_efl_have_pthread}" = "xyes" ; then
-   ifelse([$1], , :, [$1])
-else
-   ifelse([$2], , :, [$2])
+dnl check if the compiler supports pthreads spinlock
+
+_efl_have_pthread_spinlock="no"
+
+if test "x${_efl_have_pthread}" = "xyes" && test "x$1" = "xyes" ; then
+
+   AC_COMPILE_IFELSE(
+      [AC_LANG_PROGRAM([[
+#include <pthread.h>
+                       ]],
+                       [[
+pthread_spinlock_t lock;
+int res;
+res = pthread_spin_init(&lock, PTHREAD_PROCESS_PRIVATE);
+                       ]])],
+      [_efl_have_pthread_spinlock="yes"],
+      [_efl_have_pthread_spinlock="no"])
+
+fi
+
+AC_MSG_CHECKING([whether to build POSIX threads spinlock code])
+AC_MSG_RESULT([${_efl_have_pthread_spinlock}])
+
+if test "x${_efl_have_pthread_spinlock}" = "xyes" ; then
+   AC_DEFINE(EFL_HAVE_PTHREAD_SPINLOCK, 1, [Define to mention that POSIX threads spinlocks are supported])
 fi
+
+AS_IF([test "x$_efl_have_pthread" = "xyes"], [$2], [$3])
+AS_IF([test "x$_efl_have_pthread_spinlock" = "xyes"], [$4], [$5])
+
 ])
diff --git a/m4/efl_tests.m4 b/m4/efl_tests.m4
index 98d11bb..3a4dfe2 100644
--- a/m4/efl_tests.m4
+++ b/m4/efl_tests.m4
@@ -37,11 +37,7 @@ fi
 
 AM_CONDITIONAL(EFL_ENABLE_TESTS, test "x${_efl_enable_tests}" = "xyes")
 
-if test "x${_efl_enable_tests}" = "xyes" ; then
-   m4_default([$1], [:])
-else
-   m4_default([$2], [:])
-fi
+AS_IF([test "x$_efl_enable_tests" = "xyes"], [$1], [$2])
 ])
 
 dnl End of efl_tests.m4
-- 
2.7.4