From 69892748d7d18851c9cd7c49b351bbf86d2e2325 Mon Sep 17 00:00:00 2001
From: tobigun <tobigun@b956fd51-792f-4845-bead-9b4dfca2ff2c>
Date: Tue, 22 Apr 2008 15:34:31 +0000
Subject: New Makefile: - no need to edit config-linux.inc for non-standard
 installation - "make release", "make debug" targets, so reconfiguring with
 --enable/disable-debug is not necessary anymore - linkerflags (environment
 variables LDFLAGS and LIBS) (e.g. from pkg-config) like "-Lpath" or
 "-Wl,-rpath,'path'" are passed to fpc - some cleanup

git-svn-id: svn://svn.code.sf.net/p/ultrastardx/svn/trunk@1028 b956fd51-792f-4845-bead-9b4dfca2ff2c
---
 Game/Code/m4/fpc.m4 | 106 +++++++++++++++++++++++++++++++---------------------
 1 file changed, 64 insertions(+), 42 deletions(-)

(limited to 'Game/Code/m4/fpc.m4')

diff --git a/Game/Code/m4/fpc.m4 b/Game/Code/m4/fpc.m4
index 51ebfc63..e2b0cfbc 100644
--- a/Game/Code/m4/fpc.m4
+++ b/Game/Code/m4/fpc.m4
@@ -16,77 +16,93 @@ dnl **
 
 AC_DEFUN([AC_PROG_FPC], [
 
-AC_ARG_VAR(PFLAGS, [Free Pascal Compiler flags])
+AC_ARG_VAR(PFLAGS, [Free Pascal Compiler flags (replaces all other flags)])
+AC_ARG_VAR(PFLAGS_DEBUG, [Free Pascal Compiler debug flags @<:@-gl -Coi -Xs- -vew -dDEBUG_MODE@:>@])
+AC_ARG_VAR(PFLAGS_RELEASE, [Free Pascal Compiler release flags @<:@-O2 -Xs -vew@:>@])
+AC_ARG_VAR(PFLAGS_EXTRA, [Free Pascal Compiler additional flags])
+
+dnl set DEBUG/RELEASE flags to default-values if unset
+
+dnl - Do not use -dDEBUG because this will enable range-checks that will fail with USDX.
+dnl - Disable -Xs which is defined in fpc.cfg (TODO: is this necessary?).
+dnl - For FPC we have to use DEBUG_MODE instead of DEBUG to enable the apps debug-mode 
+dnl   because DEBUG enables some additional compiler-flags in fpc.cfg too
+PFLAGS_DEBUG=${PFLAGS_DEBUG-"-gl -Cit -Xs- -vew -dDEBUG_MODE"}
+dnl -dRELEASE works too but we define our own settings
+PFLAGS_RELEASE=${PFLAGS_RELEASE-"-O2 -Xs -vew"}
+
 
 AC_ARG_ENABLE(dummy_fpc1,[
 Free Pascal Compiler specific options:])
 
 AC_ARG_WITH(fpc,
-  [AS_HELP_STRING([--with-fpc],
+  [AS_HELP_STRING([--with-fpc=DIR],
     [Directory of the FPC executable @<:@PATH@:>@])],
   [PPC_PATH=$withval], [])
 
 FPC_DEBUG="no"
 
-AC_ARG_ENABLE(debug,
-  [AS_HELP_STRING([--enable-debug],
-    [Enable FPC debug options @<:@default=no@:>@])],
-  [FPC_DEBUG="yes"], [])
-
-
 AC_ARG_ENABLE(release,
   [AS_HELP_STRING([--enable-release],
-    [Enable FPC release options (same as --enable-debug=no)])],
-  [FPC_DEBUG="no"], [])
-
-dnl do not use -dDEBUG because this will enable range-checks
-dnl that will fail with USDX.
-dnl we have to disable -Xs which is defined in fpc.cfg.
-AC_ARG_WITH(debug-flags,
-  [AS_HELP_STRING([--with-debug-flags],
-    [FPC debug flags @<:@-gl -Coi -Xs- -vew@:>@])],
-  [PFLAGS_DEBUG="$withval"], 
-  [PFLAGS_DEBUG="-gl -Cit -Xs- -vew"])
+    [Enable FPC release options @<:@default=yes@:>@])],
+  [test $enableval = "no" && FPC_DEBUG="yes"], [])
 
-dnl -dRELEASE works too but we define our own settings
-AC_ARG_WITH(release-flags,
-  [AS_HELP_STRING([--with-release-flags],
-    [FPC release flags @<:@-O2 -Xs -vew@:>@])],
-  [PFLAGS_RELEASE="$withval"], 
-  [PFLAGS_RELEASE="-O2 -Xs -vew"])
-
-dnl the user's PFLAGS must *follow* this script's flags
-dnl to enable the user to overwrite the settings.
-if test x$FPC_DEBUG = xyes; then 
-	PFLAGS="$PFLAGS_DEBUG $PFLAGS"
-else
-	PFLAGS="$PFLAGS_RELEASE $PFLAGS"
-fi
+AC_ARG_ENABLE(debug,
+  [AS_HELP_STRING([--enable-debug],
+    [Enable FPC debug options (= --disable-release) @<:@default=no@:>@])],
+  [test $enableval = "yes" && FPC_DEBUG="yes"], [])
 
 AC_ARG_ENABLE(profile,
   [AS_HELP_STRING([--enable-profile],
-    [Enable FPC profiling options])],
-  [PFLAGS="-pg $PFLAGS"], [])
+    [Enable FPC profiling options @<:@default=no@:>@])],
+  [PFLAGS_EXTRA="$PFLAGS_EXTRA -pg"], [])
+
+
+dnl ** set PFLAGS depending on whether it is already set by the user
+dnl Note: the user's PFLAGS must *follow* this script's flags
+dnl   to enable the user to overwrite the settings.
+if test x${PFLAGS+assigned} = x; then
+dnl PFLAGS not set by the user
+	if test x$FPC_DEBUG = xyes; then 
+		PFLAGS="$PFLAGS_DEBUG"
+		PFLAGS_MAKE="[\$](PFLAGS_DEBUG)"
+	else
+		PFLAGS="$PFLAGS_RELEASE"
+		PFLAGS_MAKE="[\$](PFLAGS_RELEASE)"
+	fi
+else
+dnl PFLAGS set by the user, just add additional flags
+	PFLAGS="$PFLAGS"
+	PFLAGS_MAKE="$PFLAGS"
+fi
+
+dnl ** find compiler executable
 
 PPC_CHECK_PROGS="fpc FPC ppc386 ppc PPC386 ppos2"
 
 if test -z "$PPC_PATH"; then
 	PPC_PATH=$PATH
 	AC_CHECK_PROGS(PPC, $PPC_CHECK_PROGS)
+	AC_CHECK_PROGS(FPCMAKE, [fpcmake])
 else
 	AC_PATH_PROGS(PPC, $PPC_CHECK_PROGS, [], $PPC_PATH)
+	AC_PATH_PROGS(FPCMAKE, [fpcmake], [], $PPC_PATH)
 fi
 if test -z "$PPC"; then
 	AC_MSG_ERROR([no Free Pascal Compiler found in $PPC_PATH])
 fi
+if test -z "$FPCMAKE"; then
+	AC_MSG_ERROR([fpcmake not found in $PPC_PATH])
+fi
 
 AC_PROG_FPC_WORKS
 AC_PROG_FPC_LINKS
 
 dnl *** Get the FPC version and some paths
-FPC_VERSION=`${PPC} ${PFLAGS} -iV`
-FPC_PLATFORM=`${PPC} ${PFLAGS} -iTO`
-FPC_PROCESSOR=`${PPC} ${PFLAGS} -iTP`
+FPC_VERSION=`${PPC} -iV`
+FPC_PLATFORM=`${PPC} -iTO`
+FPC_PROCESSOR=`${PPC} -iTP`
+
 if test "x$prefix" != xNONE; then
 	FPC_PREFIX=$prefix
 else
@@ -94,27 +110,33 @@ else
 fi
 FPC_BASE_PATH="${FPC_PREFIX}/lib/fpc/${FPC_VERSION}"
 FPC_UNIT_PATH="${FPC_BASE_PATH}/units/${FPC_PLATFORM}"
+
 AC_SUBST(PFLAGS)
+AC_SUBST(PFLAGS_MAKE)
+AC_SUBST(PFLAGS_EXTRA)
 AC_SUBST(PFLAGS_DEBUG)
 AC_SUBST(PFLAGS_RELEASE)
+
 AC_SUBST(FPC_VERSION)
 AC_SUBST(FPC_PLATFORM)
 AC_SUBST(FPC_PROCESSOR)
+
 AC_SUBST(FPC_PREFIX)
 AC_SUBST(FPC_BASE_PATH)
 AC_SUBST(FPC_UNIT_PATH)
 ])
 
+PFLAGS_TEST="$PFLAGS $PFLAGS_EXTRA"
 
 dnl ***
 dnl *** Check if FPC works and can compile a program
 dnl ***
 AC_DEFUN([AC_PROG_FPC_WORKS],
-[AC_CACHE_CHECK([whether the Free Pascal Compiler ($PPC $PFLAGS) works], ac_cv_prog_ppc_works,
+[AC_CACHE_CHECK([whether the Free Pascal Compiler ($PPC $PFLAGS_TEST) works], ac_cv_prog_ppc_works,
 [
 rm -f conftest*
 echo "program foo; begin writeln; end." > conftest.pp
-${PPC} ${PFLAGS} conftest.pp >> config.log
+${PPC} ${PFLAGS_TEST} conftest.pp >> config.log
 
 if test -f conftest || test -f conftest.exe; then
 dnl *** It works!
@@ -135,11 +157,11 @@ dnl ***
 dnl *** Check if FPC can link with standard libraries
 dnl ***
 AC_DEFUN([AC_PROG_FPC_LINKS],
-[AC_CACHE_CHECK([whether the Free Pascal Compiler ($PPC $PFLAGS) can link], ac_cv_prog_ppc_works,
+[AC_CACHE_CHECK([whether the Free Pascal Compiler ($PPC $PFLAGS_TEST) can link], ac_cv_prog_ppc_works,
 [
 rm -f conftest*
 echo "program foo; uses crt; begin writeln; end." > conftest.pp
-${PPC} ${PFLAGS} conftest.pp >> config.log
+${PPC} ${PFLAGS_TEST} conftest.pp >> config.log
 if test -f conftest || test -f conftest.exe; then
 	ac_cv_prog_ppc_links="yes"
 else
-- 
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