[haiku-development] Re: GCC 2.95.x on Mac OS X Intel (10.5.x)

Alright.
I've solved the makeinfo segfault issue. Everything appears to be running just fine under OS X 10.5 Intel, using GCC2. 

I would like to recommend the following changes to buildtools SVN:
1) Add the following lines to various files in buildtools/legacy/gcc/* to allow for compiling on Mac OS X Intel.
+++ ./buildtools/legacy/gcc/config.guess 2008-09-16 22:17:01.000000000 -0600 
@@ -519,6 +519,9 @@
     i?86:BSD/386:*:* | *:BSD/OS:*:*)
        echo ${UNAME_MACHINE}-pc-bsdi${UNAME_RELEASE}
        exit 0 ;;
+    *:Darwin:*:*)
+       echo ${UNAME_MACHINE}-apple-darwin${UNAME_RELEASE}
+        exit 0 ;;
     *:FreeBSD:*:*)
if test -x /usr/bin/objformat -a "elf" = "`/usr/bin/ objformat`"; then 
           echo ${UNAME_MACHINE}-unknown-freebsdelf
+++ ./buildtools/legacy/gcc/config.sub 2008-09-16 22:16:28.000000000 -0600 
@@ -937,7 +937,7 @@
              | -udi* | -eabi* | -lites* | -ieee* | -go32* | -aux* \
              | -cygwin* | -pe* | -psos* | -moss* | -proelf* | -rtems* \
              | -mingw32* | -linux-gnu* | -uxpv* | -beos* | -mpeix* | -udk* \
-             | -interix* | -uwin* | -haiku* )
+             | -interix* | -uwin* | -haiku* | -darwin* )
# Remember, each alternative MUST END IN *, to match a version number. 
                ;;
        # EGCS LOCAL
+++ ./buildtools/legacy/gcc/configure.in 2008-09-16 22:18:03.000000000 -0600 
@@ -1206,6 +1206,12 @@
                tmake_file=t-freebsd
                ;;
 changequote(,)dnl
+       i[34567]86-*-darwin*)
+changequote([,])dnl
+               tm_file=i386/freebsd.h
+               tmake_file=t-freebsd
+               ;;
+changequote(,)dnl
        i[34567]86-*-netbsd*)
 changequote([,])dnl
                tm_file=i386/netbsd.h

2) Remove the folder buildtools/legacy/gcc/texinfo
Makefile.in (under buildtools/legacy/gcc) is currently setup to check for the presence of the texinfo folder under legacy/gcc. If it is present, it attempts to compile and use the version of makeinfo found under here. This version of makeinfo appears to be outdated and immediately segfaults on Mac OS X.
Makefile.in, if it cannot find the texinfo folder, instructs the GCC2 build to use the makeinfo command as installed on the host system (somewhere residing under $PATH). Since most build OS's have native texinfo packages via their various package managers (Macports for OS X)- Makefile.in will use the host system makeinfo binary instead of attempting to compile the version in legacy/gcc/texinfo.
I have confirmed that removing the texinfo folder from legacy/gcc does indeed cause Makefile.in to use the host system binary (in my case, installed under /opt/local/bin- which is part of $PATH), and the GCC2 build continues normally and successfully generates the *.info files when makeinfo is called.
Unless there's an important reason for including texinfo with legacy/ gcc, I think it would be better to just remove it and update any relevant documents to include texinfo as a part of the pre-requisites on the host for building Haiku's cross-tools. 

Cheers.
-KT

On Sep 16, 2008, at 11:19 AM, Michael Pfeiffer wrote:



Am 16.09.2008 um 07:25 schrieb Keven Tipping:


First- add the following lines to buildtools/legacy/gcc/config.guess:

*:Darwin:*:*)
echo ${UNAME_MACHINE}-unknown-freebsd`echo ${UNAME_RELEASE}|sed -e 's/[-_].*//'` 
exit 0 ;;
Right before or after the *:FreeBSD:*:*) statement. Yes, I'm aware this is effectively making GCC think we're building on a host running FreeBSD, but Darwin is close enough- and it worked just fine.
Second- I had to clear out any content in buildtools/legacy/gcc/gcc/ *.texi.
This did not work for me, it still complained that it could not build a .info file, after removing the info stuff from buildtools/ legacy/gcc/gcc/Makefile.in (see diff below) building the VMWare image works too. Yippee! That way it is not necessary to delete the *.texi files, BTW. 

- Michael

Index: Makefile.in
===================================================================
--- Makefile.in (revision 27586)
+++ Makefile.in (working copy)
@@ -2266,7 +2266,8 @@
#

# Remake the info files.

-doc: info
+doc:
+
info: cpp.info gcc.info lang.info

cpp.info: $(srcdir)/cpp.texi
@@ -2435,7 +2436,7 @@
# Install the driver last so that the window when things are
# broken is small.
install-normal: install-common $(INSTALL_HEADERS) $(INSTALL_LIBGCC) \
- $(INSTALL_CPP) install-man install-info intl.install lang.install-normal \ 
+    $(INSTALL_CPP) install-man intl.install lang.install-normal \
    install-driver

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