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Diffstat (limited to '')
| -rw-r--r-- | dists/autogen/m4/fpc.m4 | 268 |
1 files changed, 268 insertions, 0 deletions
diff --git a/dists/autogen/m4/fpc.m4 b/dists/autogen/m4/fpc.m4 new file mode 100644 index 00000000..740071cb --- /dev/null +++ b/dists/autogen/m4/fpc.m4 @@ -0,0 +1,268 @@ +# Based on fpc.m4 Version 1.1 provided with +# J Sound System (http://jss.sourceforge.net) +# +# Originally written by +# Matti "ccr/TNSP" Hamalainen +# (C) Copyright 2000-2001 Tecnic Software productions (TNSP) +# +# Mostly rewritten by +# UltraStar Deluxe Team + +# SYNOPSIS +# +# AC_PROG_FPC +# +# DESCRIPTION +# +# Checks for Free Pascal Compiler +# +# Sets: +# PPC : fpc command +# FPCMAKE : fpcmake command +# +# PFLAGS : flags passed to fpc (overwrite default) +# PFLAGS_BASE : base flags (release + debug) +# PFLAGS_EXTRA : additional flags (appended to default PFLAGS) +# PFLAGS_DEBUG : flags used in debug build +# PFLAGS_RELEASE : flags used in release build +# +# Note: +# all PFLAGS/PFLAGS_XYZ vars are set to $(PFLAGS_XYZ_DEFAULT) +# if not set by the user, so the Makefile can assign default +# values to them. +# +# FPC_VERSION : fpc version string, e.g. 2.3.1 +# FPC_VERSION_MAJOR : major version (here 2) +# FPC_VERSION_MINOR : minor version (here 3) +# FPC_VERSION_RELEASE: release version (here 1) +# +# FPC_PLATFORM : platform of the target (linux/darwin/win32/...) +# FPC_PROCESSOR : processor of the target, (i386/...) +# FPC_CPLATFORM : platform of the compiler host, (linux/darwin/win32/...) +# FPC_CPROCESSOR : processor of the compiler host, (i386/...) +# FPC_TARGET : FPC_PROCESSOR-FPC_PLATFORM (e.g. i386-linux) +# +# FPC_PREFIX : prefix of fpc install path, (default: /usr) +# FPC_BASE_PATH : $FPC_PREFIX/lib/fpc/$FPC_VERSION +# FPC_UNIT_PATH : $FPC_BASE_PATH/units/$FPC_TARGET +# +# See "fpc -i" for a list of supported platforms and processors + +AC_DEFUN([AC_PROG_FPC], [ + +## +# User PFLAGS +## + +AC_ARG_VAR(PFLAGS, [Free Pascal Compiler flags (replaces all other flags)]) +AC_ARG_VAR(PFLAGS_BASE, [Free Pascal Compiler base flags, e.g. -Si]) +AC_ARG_VAR(PFLAGS_DEBUG, [Free Pascal Compiler debug flags, e.g. -gl]) +AC_ARG_VAR(PFLAGS_RELEASE, [Free Pascal Compiler release flags, e.g. -O2]) +AC_ARG_VAR(PFLAGS_EXTRA, [Free Pascal Compiler additional flags]) + +## +# Compiler options +## + +AC_ARG_ENABLE(dummy_fpc1,[ +Free Pascal Compiler specific options:]) + +# fpc path +AC_ARG_WITH(fpc, + [AS_HELP_STRING([--with-fpc=DIR], + [Directory of the FPC executable @<:@PATH@:>@])], + [PPC_PATH=$withval], []) + +# verbose +AC_ARG_ENABLE(verbose, + [AS_HELP_STRING([--disable-verbose], + [Disable verbose compiler output @<:@default=no@:>@])], + [test x$enableval = xno && PFLAGS_EXTRA="$PFLAGS_EXTRA -v0Bew"], []) + +# gprof +AC_ARG_ENABLE(gprof, + [AS_HELP_STRING([--enable-gprof], + [Enable profiling with gprof @<:@default=no@:>@])], + [test x$enableval = xyes && PFLAGS_EXTRA="$PFLAGS_EXTRA -pg"], []) + +# valgrind +AC_ARG_ENABLE(valgrind, + [AS_HELP_STRING([--enable-valgrind], + [Enable debugging with valgrind @<:@default=no@:>@])], + [test x$enableval = xyes && PFLAGS_EXTRA="$PFLAGS_EXTRA -gv"], []) + +# heaptrace +AC_ARG_ENABLE(heaptrace, + [AS_HELP_STRING([--enable-heaptrace], + [Enable heaptrace (memory corruption detection) @<:@default=no@:>@])], + [test x$enableval = xyes && PFLAGS_EXTRA="$PFLAGS_EXTRA -gh"], []) + +# range-checks +AC_ARG_ENABLE(rangechecks, + [AS_HELP_STRING([--enable-rangechecks], + [Enables range-checks @<:@default=no@:>@])], + [test x$enableval = xyes && PFLAGS_EXTRA="$PFLAGS_EXTRA -Crtoi"], []) + +# allow execstack (see noexecstack compiler check below) +AC_ARG_ENABLE(noexecstack, + [AS_HELP_STRING([--disable-noexecstack], + [Allow executable stacks @<:@default=no@:>@])], + [], [enable_noexecstack="yes"]) + +### +# Find compiler executable +### + +PPC_CHECK_PROGS="fpc FPC ppc386 ppc PPC386" + +if test -z "$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 $PPC_PATH]) +fi + +### +# Get the FPC compiler info +### + +AC_MSG_CHECKING([version of fpc]) +FPC_VERSION=`${PPC} -iV` +AX_EXTRACT_VERSION(FPC, $FPC_VERSION) +AC_SUBST(FPC_VERSION) +AC_MSG_RESULT([@<:@$FPC_VERSION@:>@]) + +FPC_PLATFORM=`${PPC} -iTO` +FPC_PROCESSOR=`${PPC} -iTP` +FPC_CPLATFORM=`${PPC} -iSO` +FPC_CPROCESSOR=`${PPC} -iSP` + +FPC_TARGET=${FPC_PROCESSOR}-${FPC_PLATFORM} + + +AC_SUBST(FPC_PLATFORM) +AC_SUBST(FPC_PROCESSOR) +AC_SUBST(FPC_CPLATFORM) +AC_SUBST(FPC_CPROCESSOR) +AC_SUBST(FPC_TARGET) + +### +# Get paths +### + +if test "x$prefix" != xNONE; then + FPC_PREFIX=$prefix +else + FPC_PREFIX=$ac_default_prefix +fi + +FPC_BASE_PATH="${FPC_PREFIX}/lib/fpc/${FPC_VERSION}" +FPC_UNIT_PATH="${FPC_BASE_PATH}/units/${FPC_TARGET}" + +AC_SUBST(FPC_PREFIX) +AC_SUBST(FPC_BASE_PATH) +AC_SUBST(FPC_UNIT_PATH) + +### +# Compiler checks +### + +SIMPLE_PROGRAM="program foo; begin writeln; end." + +# Check if FPC works and can compile a program +AC_CACHE_CHECK([whether the Free Pascal Compiler works], ac_cv_prog_ppc_works, +[ + AC_PROG_FPC_CHECK([ac_cv_prog_ppc_works], [], [$SIMPLE_PROGRAM]) +]) +if test x$ac_cv_prog_ppc_works = xno; then + AC_MSG_ERROR([installation or configuration problem: Cannot create executables.]) +fi + +# Check if FPC can link with standard libraries +AC_CACHE_CHECK([whether the Free Pascal Compiler can link], ac_cv_prog_ppc_links, +[ + AC_PROG_FPC_CHECK([ac_cv_prog_ppc_links], [], + [program foo; uses crt; begin writeln; end.] + ) +]) +if test x$ac_cv_prog_ppc_links = xno; then + AC_MSG_ERROR([installation or configuration problem: Cannot link with some standard libraries.]) +fi + +# Check whether FPC's linker knows "-z noexecstack" +# FPC does not set the NX-flag on stack memory. Binaries generated with FPC +# might crash on platforms that require the stack to be non-executable. +# So we will try to find a workaround here. +# See http://bugs.freepascal.org/view.php?id=11563 + +AC_CACHE_CHECK([whether FPC supports -k"-z noexecstack"], ac_cv_prog_ppc_noexecstack, +[ + AC_PROG_FPC_CHECK([ac_cv_prog_ppc_noexecstack], [-k"-z noexecstack"], [$SIMPLE_PROGRAM]) +]) +if test x$enable_noexecstack = xyes; then + if test x$ac_cv_prog_ppc_noexecstack = xyes; then + PFLAGS_EXTRA="$PFLAGS_EXTRA -k\"-z noexecstack\"" + fi +fi + +# Finally substitute PFLAGS + +# set unset PFLAGS_XYZ vars to $(PFLAGS_XYZ_DEFAULT) +# so the Makefile can define default values to it. +true ${PFLAGS:=\$(PFLAGS_DEFAULT)} +true ${PFLAGS_BASE:=\$(PFLAGS_BASE_DEFAULT)} +true ${PFLAGS_EXTRA:=\$(PFLAGS_EXTRA_DEFAULT)} +true ${PFLAGS_DEBUG:=\$(PFLAGS_DEBUG_DEFAULT)} +true ${PFLAGS_RELEASE:=\$(PFLAGS_RELEASE_DEFAULT)} + +AC_SUBST(PFLAGS) +AC_SUBST(PFLAGS_BASE) +AC_SUBST(PFLAGS_EXTRA) +AC_SUBST(PFLAGS_DEBUG) +AC_SUBST(PFLAGS_RELEASE) + +]) + +####################################### +# Helper functions +####################################### + +# SYNOPSIS +# +# AC_PROG_FPC_CHECK(RESULT, FPC_FLAGS, CODE) +# +# DESCRIPTION +# +# Checks if FPC is able to compile CODE with FPC_FLAGS. +# The result ("yes" on success, "no" otherwise) is +# stored in [$RESULT] +# +# Parameters: +# RESULT: Name of result variable +# FPC_FLAGS: Flags passed to FPC +# CODE: + +AC_DEFUN([AC_PROG_FPC_CHECK], +[ + # create test file + rm -f conftest* + echo "[$3]" > conftest.pp + + # compile test file + ${PPC} [$2] conftest.pp >> config.log 2>&1 + + # check if test file was compiled + if test -f conftest || test -f conftest.exe; then + [$1]="yes" + else + [$1]="no" + fi + + # remove test file + rm -f conftest* +]) |