pandora-build v0.1

[awesomized/libmemcached] / m4 / pandora_optimize.m4

diff --git a/m4/pandora_optimize.m4 b/m4/pandora_optimize.m4
new file mode 100644 (file)
index 0000000..c255f25
--- /dev/null
+++ b/m4/pandora_optimize.m4
@@ -0,0 +1,64 @@
+dnl  Copyright (C) 2009 Sun Microsystems
+dnl This file is free software; Sun Microsystems
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+AC_DEFUN([PANDORA_OPTIMIZE],[
+  dnl Build optimized or debug version ?
+  dnl First check for gcc and g++
+  AS_IF([test "$GCC" = "yes"],[
+
+    AC_DEFINE([_GNU_SOURCE],[1],[Fix problem with S_ISLNK() on Linux])
+
+    dnl The following is required for portable results of floating point 
+    dnl calculations on PowerPC. The same must also be done for IA-64, but 
+    dnl this options is missing in the IA-64 gcc backend.
+    case "$target_cpu" in
+      *ppc* | *powerpc*)
+        AM_CFLAGS="-mno-fused-madd ${AM_CFLAGS}"
+        AM_CXXFLAGS="-mno-fused-madd ${AM_CXXFLAGS}"
+      ;;
+    esac
+
+    dnl Once we can use a modern autoconf, we can replace the std=gnu99 here
+    dnl with using AC_CC_STD_C99 above
+    CC="${CC} -std=gnu99"
+
+    AM_CPPFLAGS="-ggdb3 ${AM_CPPFLAGS}"
+
+    DEBUG_CFLAGS="-O0"
+    DEBUG_CXXFLAGS="-O0"
+
+    OPTIMIZE_CFLAGS="-O3"
+    OPTIMIZE_CXXFLAGS="-O3"
+  ])
+  AS_IF([test "$SUNCC" = "yes"],[
+    dnl Once we can use a modern autoconf, we can replace the -xc99=all here
+    dnl with using AC_CC_STD_C99 above
+    CC="${CC} -xc99=all"
+    CXX="${CXX} -xlang=c99"
+
+    AM_CFLAGS="-g -mt -xstrconst -Xa ${AM_CFLAGS}"
+    AM_CXXFLAGS="-g -mt -compat=5 -library=stlport4 -template=no%extdef ${AM_CXXFLAGS}"
+
+    dnl TODO: Make a test for -xO4 usability here
+    OPTIMIZE_FLAGS="-xO3 -xlibmil -xdepend -xbuiltin"
+    OPTIMIZE_CFLAGS="${OPTIMIZE_FLAGS}"
+    OPTIMIZE_CXXFLAGS="${OPTIMIZE_FLAGS}"
+  ])
+
+  AC_ARG_WITH([debug],
+    [AS_HELP_STRING([--with-debug],
+       [Add debug code/turns off optimizations (yes|no) @<:@default=no@:>@])],
+    [with_debug=$withval],
+    [with_debug=no])
+  AS_IF([test "$with_debug" = "yes"],[
+    # Debugging. No optimization.
+    AM_CFLAGS="${AM_CFLAGS} ${DEBUG_CFLAGS} -DDEBUG"
+    AM_CXXFLAGS="${AM_CXXFLAGS} ${DEBUG_CXXFLAGS} -DDEBUG"
+  ],[
+    # Optimized version. No debug
+    AM_CFLAGS="${AM_CFLAGS} ${OPTIMIZE_CFLAGS}"
+    AM_CXXFLAGS="${AM_CXXFLAGS} ${OPTIMIZE_CXXFLAGS}"
+  ])
+])