Imported Upstream version 1.4.10upstream/1.4.10

1 files changed, 43 insertions, 0 deletions

diff --git a/m4/tp-compiler-flag.m4 b/m4/tp-compiler-flag.m4
new file mode 100644
index 00000000..06deaba0
--- /dev/null
+++ b/m4/tp-compiler-flag.m4
@@ -0,0 +1,43 @@
+dnl A version of AS_COMPILER_FLAG that supports both C and C++.
+dnl Based on:
+
+dnl as-compiler-flag.m4 0.1.0
+dnl autostars m4 macro for detection of compiler flags
+dnl David Schleef <ds@schleef.org>
+dnl $Id: as-compiler-flag.m4,v 1.1 2005/06/18 18:02:46 burgerman Exp $
+
+dnl TP_COMPILER_FLAG(CFLAGS, ACTION-IF-ACCEPTED, [ACTION-IF-NOT-ACCEPTED])
+dnl Tries to compile with the given CFLAGS and CXXFLAGS.
+dnl
+dnl Runs ACTION-IF-ACCEPTED if the compiler for the currently selected
+dnl AC_LANG can compile with the flags, and ACTION-IF-NOT-ACCEPTED otherwise.
+
+AC_DEFUN([TP_COMPILER_FLAG],
+[
+  AC_MSG_CHECKING([to see if compiler understands $1])
+
+  save_CFLAGS="$CFLAGS"
+  save_CXXFLAGS="$CXXFLAGS"
+  CFLAGS="$CFLAGS $1"
+  CXXFLAGS="$CXXFLAGS $1"
+
+  AC_TRY_COMPILE([ ], [], [flag_ok=yes], [flag_ok=no])
+  CFLAGS="$save_CFLAGS"
+  CXXFLAGS="$save_CXXFLAGS"
+
+  if test "X$flag_ok" = Xyes ; then
+    $2
+    true
+  else
+    $3
+    true
+  fi
+  AC_MSG_RESULT([$flag_ok])
+])
+
+dnl TP_ADD_COMPILER_FLAG(VARIABLE, CFLAGS)
+dnl Append CFLAGS to VARIABLE if the compiler supports them.
+AC_DEFUN([TP_ADD_COMPILER_FLAG],
+[
+  TP_COMPILER_FLAG([$2], [$1="[$]$1 $2"])
+])