X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/126be6b469200df524f7c84d3719265a0ac68f41..2adfb497e666354303ea6bb0e468f1e53811ad55:/configure.in

diff --git a/configure.in b/configure.in
index edafe448f3..34b2361d62 100644
--- a/configure.in
+++ b/configure.in
@@ -1170,6 +1170,11 @@ dnl   defines CC with the compiler to use
 dnl   defines GCC with yes if using gcc
 dnl   defines GCC empty if not using gcc
 dnl   defines CFLAGS
+dnl
+dnl this magic incantation is needed to prevent AC_PROG_CC from setting the
+dnl default CFLAGS (something like "-g -O2") - we don't need this as add
+dnl -g and -O flags ourselves below
+CFLAGS=${CFLAGS=}
 AC_PROG_CC
 
 dnl is -traditional needed for correct compilations
@@ -1184,6 +1189,9 @@ dnl   defines CXX with the compiler to use
 dnl   defines GXX with yes if using gxx
 dnl   defines GXX empty if not using gxx
 dnl   defines CXXFLAGS
+dnl
+dnl see CFLAGS line above
+CXXFLAGS=${CXXFLAGS=}
 AC_PROG_CXX
 
 AC_LANG_RESTORE
@@ -3181,7 +3189,7 @@ if test "$TOOLKIT" != "MSW"; then
         dnl simply linking with libpthread should make the test below work but
         dnl it's far from certain that the threaded programs compiled without
         dnl any special switches actually work, so try it after all the others
-        THREAD_OPTS="$THREAD_OPTS -lpthread none"
+        THREAD_OPTS="$THREAD_OPTS pthread none"
 
         dnl now test for all possibilities
         THREADS_OK=no
@@ -3205,7 +3213,7 @@ if test "$TOOLKIT" != "MSW"; then
               save_LIBS="$LIBS"
               save_CFLAGS="$CFLAGS"
               LIBS="$THREADS_LINK $LIBS"
-              CFLAGS="$CFLAGS $THREADS_CFLAGS"
+              CFLAGS="$THREADS_CFLAGS $CFLAGS"
 
               AC_TRY_LINK([#include <pthread.h>],
                           [pthread_create(0,0,0,0);],
@@ -3227,6 +3235,10 @@ if test "$TOOLKIT" != "MSW"; then
           wxUSE_THREADS=no
           AC_MSG_WARN([No thread support on this system... disabled])
       else
+          dnl yes, these special compiler flags should be used with the
+          dnl linker as well
+          LIBS="$THREADS_LINK $THREADS_CFLAGS $LIBS"
+
           AC_MSG_CHECKING([if more special flags are required for pthreads])
           flag=no
           case "${host}" in
@@ -3239,14 +3251,11 @@ if test "$TOOLKIT" != "MSW"; then
           esac
           AC_MSG_RESULT(${flag})
           if test "x$flag" != xno; then
-              THREADS_CFLAGS="$flag $THREADS_CFLAGS"
-          fi
-
-          if test "x$THREADS_LINK" != "x"; then
-            LIBS="$THREADS_LINK $LIBS"
+              THREADS_CFLAGS="$THREADS_CFLAGS $flag"
           fi
 
           if test "x$THREADS_CFLAGS" != "x"; then
+            dnl don't add these options to CPPFLAGS as cpp might not know them
             CFLAGS="$CFLAGS $THREADS_CFLAGS"
             CXXFLAGS="$CXXFLAGS $THREADS_CFLAGS"
           fi
@@ -3382,9 +3391,6 @@ fi
 if test "$wxUSE_THREADS" = "yes"; then
   AC_DEFINE(wxUSE_THREADS)
 
-  dnl we must define _REENTRANT or something along these lines for MT code
-  TOOLCHAIN_DEFS="$TOOLCHAIN_DEFS $THREADS_CFLAGS"
-
   SAMPLES_SUBDIRS="$SAMPLES_SUBDIRS thread"
 else
   dnl on some systems, _REENTRANT should be defined if we want to use any _r()
@@ -3470,9 +3476,6 @@ if test "$GCC" = "yes" ; then
     fi
 fi
 
-
-CXXFLAGS=`echo "${CXXFLAGS}" | sed "s/\-O.//g" `
-CFLAGS=`echo "${CFLAGS}" | sed "s/\-O.//g" `
 if test "$wxUSE_OPTIMISE" = "no" ; then
     OPTIMISE=
 else
@@ -4784,10 +4787,12 @@ fi
 
 EXTRA_CFLAGS="$WXDEBUG $WXODBCFLAG $PROFILE $OPTIMISE $INCLUDES"
 
+dnl remove the extra white space from the cc/c++/ld options
 CFLAGS=`echo $CFLAGS $EXTRA_CFLAGS $CXXWARNINGS | sed 's/ \\+/ /g'`
 CXXFLAGS=`echo $CXXFLAGS $EXTRA_CFLAGS $CXXWARNINGS | sed 's/ \+/ /g'`
+LIBS=`echo $LIBS | sed 's/ \+/ /g'`
 
-LDFLAGS="$LDFLAGS$PROFILE"
+LDFLAGS="$LDFLAGS $PROFILE"
 
 dnl for convenience, sort the samples in alphabetical order
 dnl