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====== Building i386 Linux GCC for Mac OS X (Release 1, december 2005) ====== You need Apple Developer Tools, that you can download from [[http://connect.apple.com/|Apple Developer Connection]]. I have installed XCode Tools 2.2, and I have used ''gcc-4.0'' for cross-compiling i386 Linux gcc. i386 Linux GCC for Mac OS X Source package is available [[http://crossgcc.rts-software.org/doku.php?id=start|here]] as a DMG file. Mount DMG file, and copy its contents in any directory in a **case-sensitive** file system. ===== Case-sensitive File System ===== **Use a case-sensitive file System** (Unix File System or Mac OS Extended Case-sensitive). Building GLIBC fails in a case-insentive file system (don't ask me why !), with the following error message: %%i386-linux-gcc -nostdlib -nostartfiles -shared -o /MYPATH/linux/build_glibc/elf/ld.so \ %%\\ %%          -Wl,-z,combreloc -Wl,-z,relro -Wl,-z,defs \ %%\\ %%          /MYPATH/linux/build_glibc/elf/librtld.os -Wl,--version-script=/MYPATH/linux/build_glibc/ld.map \ %%\\ %%          -Wl,-soname=ld-linux.so.2 -T /MYPATH/linux/build_glibc/elf/ld.so.lds %%\\ %%/MYPATH/linux/build_glibc/elf/librtld.os: In function `process_envvars': %%\\ %%/MYPATH/linux/glibc-2.5/elf/rtld.c:2718: undefined reference to `__open' %%\\ %%/MYPATH/linux/glibc-2.5/elf/rtld.c:2690: undefined reference to `__access' %%\\ %%/MYPATH/linux/build_glibc/elf/librtld.os: In function `dl_main': %%\\ %%/MYPATH/linux/glibc-2.5/elf/rtld.c:1657: undefined reference to `__access' %%\\ %%/MYPATH/linux/build_glibc/elf/librtld.os: In function `_dl_discover_osversion': %%\\ %%../sysdeps/unix/sysv/linux/dl-osinfo.h:96: undefined reference to `__open' %%\\ %%../sysdeps/unix/sysv/linux/dl-osinfo.h:99: undefined reference to `__read' %%\\ %%../sysdeps/unix/sysv/linux/dl-osinfo.h:100: undefined reference to `__close' %%\\ %%/MYPATH/linux/build_glibc/elf/librtld.os: In function `lose': %%\\ %%/MYPATH/linux/glibc-2.5/elf/dl-load.c:817: undefined reference to `__close' %%\\ %%/MYPATH/linux/build_glibc/elf/librtld.os: In function `open_verify': %%\\ %%/MYPATH/linux/glibc-2.5/elf/dl-load.c:1640: undefined reference to `__open' %%\\ %%/MYPATH/linux/glibc-2.5/elf/dl-load.c:1652: undefined reference to `__libc_read' %%\\ %%/MYPATH/linux/glibc-2.5/elf/dl-load.c:1750: undefined reference to `__lseek' %%\\ %%/MYPATH/linux/glibc-2.5/elf/dl-load.c:1751: undefined reference to `__libc_read' %%\\ %%/MYPATH/linux/glibc-2.5/elf/dl-load.c:1768: undefined reference to `__lseek' %%\\ %%/MYPATH/linux/glibc-2.5/elf/dl-load.c:1769: undefined reference to `__libc_read' %%\\ %%/MYPATH/linux/glibc-2.5/elf/dl-load.c:1785: undefined reference to `__close'%% \\ %%/MYPATH/linux/build_glibc/elf/librtld.os: In function `open_path': %%\\ %%/MYPATH/linux/glibc-2.5/elf/dl-load.c:1875: undefined reference to `__GI___xstat64' %%\\ %%/MYPATH/linux/glibc-2.5/elf/dl-load.c:1895: undefined reference to `__GI___fxstat64' %%\\ %%/MYPATH/linux/glibc-2.5/elf/dl-load.c:1901: undefined reference to `__close' %%\\ %%/MYPATH/linux/glibc-2.5/elf/dl-load.c:1922: undefined reference to `__close' %%\\ %%/MYPATH/linux/build_glibc/elf/librtld.os: In function `_dl_map_object_from_fd': %%\\ %%/MYPATH/linux/glibc-2.5/elf/dl-load.c:868: undefined reference to `__GI___fxstat64' %%\\ %%/MYPATH/linux/glibc-2.5/elf/dl-load.c:884: undefined reference to `__close' %%\\ %%/MYPATH/linux/glibc-2.5/elf/dl-load.c:1001: undefined reference to `__lseek' %%\\ %%/MYPATH/linux/glibc-2.5/elf/dl-load.c:1002: undefined reference to `__libc_read' %%\\ %%/MYPATH/linux/glibc-2.5/elf/dl-load.c:913: undefined reference to `__close' %%\\ %%/MYPATH/linux/glibc-2.5/elf/dl-load.c:1441: undefined reference to `__close' %%\\ %%/MYPATH/linux/build_glibc/elf/librtld.os: In function `_dl_map_object': %%\\ %%/MYPATH/linux/glibc-2.5/elf/dl-load.c:2150: undefined reference to `__close' %%\\ %%/MYPATH/linux/build_glibc/elf/librtld.os: In function `_dl_new_object': %%\\ %%/MYPATH/linux/glibc-2.5/elf/dl-object.c:167: undefined reference to `__getcwd' %%\\ %%/MYPATH/linux/build_glibc/elf/librtld.os: In function `_dl_sysdep_read_whole_file': %%\\ %%/MYPATH/linux/glibc-2.5/elf/dl-misc.c:58: undefined reference to `__open' %%\\ %%/MYPATH/linux/glibc-2.5/elf/dl-misc.c:61: undefined reference to `__GI___fxstat64' %%\\ %%/MYPATH/linux/glibc-2.5/elf/dl-misc.c:79: undefined reference to `__close' %%\\ %%/MYPATH/linux/build_glibc/elf/librtld.os: In function `_dl_start_profile': %%\\ %%/MYPATH/linux/glibc-2.5/elf/dl-profile.c:287: undefined reference to `__open' %%\\ %%/MYPATH/linux/glibc-2.5/elf/dl-profile.c:304: undefined reference to `__GI___fxstat64' %%\\ %%/MYPATH/linux/glibc-2.5/elf/dl-profile.c:298: undefined reference to `__close' %%\\ %%/MYPATH/linux/glibc-2.5/elf/dl-profile.c:335: undefined reference to `__close' %%\\ %%/MYPATH/linux/glibc-2.5/elf/dl-profile.c:355: undefined reference to `__close' %%\\ %%/MYPATH/linux/glibc-2.5/elf/dl-profile.c:320: undefined reference to `__lseek' %%\\ %%/MYPATH/linux/glibc-2.5/elf/dl-profile.c:327: undefined reference to `__libc_write' %%\\ %%/MYPATH/linux/build_glibc/elf/librtld.os: In function `check_one_fd': %%\\ %%/MYPATH/linux/glibc-2.5/csu/check_fds.c:44: undefined reference to `__libc_fcntl' %%\\ %%/MYPATH/linux/glibc-2.5/csu/check_fds.c:75: undefined reference to `__GI___fxstat64' %%\\ %%collect2: ld returned 1 exit status %%\\ %%make[4]: *** [/MYPATH/linux/build_glibc/elf/ld.so] Error 1 %%\\ %%make[3]: *** [elf/subdir_lib] Error 2 %%\\ %%make[2]: *** [all] Error 2 %%\\ %%make[1]: *** [/usr/local/i386-linux-4.1.1/lib/libg.a] Error 2 %%\\ %%make: *** [step5] Error 2 %%\\ ===== Building step overview ===== All operations are organized by the ''makefile'' file. For making things easier, I have included numerous shell script files (files with ''**.command**'' extensions). Theses files just invoke ''make'' with a specific goal. My first intention was to build all products in user space and then to recopy them in their final destination. I noted that did not work. The generated ''ld'' contains absolute pathes, so it does not support to be moved. I think that there is perhaps a solution with ''%%--%%with-sys-root'' configure option, but I did not find it. ==== Makefile Variables ===== The ''makefile'' defines several variables: ^Variable ^Default Value ^Meaning ^ |''BINUTILS_VERSION'' |''2.16.1'' |binutils package version | |''GCC_VERSION'' |''4.0.2'' |The GCC package version | |''GLIBC_VERSION'' |''2.3.5'' |GLIBC package version and GLIBC LINUXTHREADS package version | |''LINUX_LIBC_HEADERS_VERSION'' |''2.6.11.2'' |Linux libc headers package version | |''SED_VERSION'' |''4.1.4'' |The GNU ''sed'' tool version (for Mac OS X) | |''GETTEXT_VERSION'' |''0.14'' |The GNU ''gettext'' tool version (for Mac OS X) | |''GAWK_VERSION'' |''3.0.6'' |The GNU ''gawk'' tool version (for Mac OS X) | |''TARGET'' |''i386-linux'' |The target name | |''INSTALLATION'' |''/usr/local/i386-linux-$(GCC_VERSION)'' |Where products are built | |''NATIVE_COMPILER'' |''gcc-4.0'' |The Mac OS X native compiler used for compiling tool chain; I have used gcc-4.0, provided in Developer Tools 2.2 | |''MACOSX_TOOLS_PREFIX'' |''$(PWD)/macosx_tools'' |The directory where the Mac OS X tools are installed | ==== Build Steps ===== As full building takes a while, I have divided it in six steps, as described in the following table. All building steps are provided by the ''makefile'' file, which defines the ''step1'', ''step2'', ..., ''step5'' goals. ''stepi'' (for ''i>1'') makes ''stepi-1'' before performing its own work. All step products are installed by in the ''$(INSTALLATION)'' directory (so build and clean commands invoke ''make'' from ''sudo''). The products of each building step is saved in an archive (''products_after_step_i.tar.bz2''). At the beginning of each step, the products from preceeding step are restored from the archive. The ''build_binary_package'' builds a DMG file that contains an Mac OS X installer file. The ''build_source_disk_image'' builds a DMG file that contains all source tarballs, makefile, all command files, ... exactly like the one you have downloaded. ^Command File ^Makefile Goal ^Operation ^ |''build_step1.command''|''step1'' |Download tarballs | |''build_step2.command''|''step2'' |performs ''step2'', then builds and installs binutils in ''$INSTALLATION'' directory | |''build_step3.command''|''step3'' |performs ''step2'', then builds and installs C compiler in ''$(INSTALLATION)'' directory | |''build_step4.command''|''step4'' |performs ''step3'', then builds and installs needed Mac OS X tools in ''$(MACOSX_TOOLS_PREFIX)'' directory | |''build_step5.command''|''step5'' |performs ''step4'', then builds and installs GLIBC in ''$(INSTALLATION)'' directory | |''build_step6.command''|''step6'' |performs ''step5'', then builds and installs other compilers in ''$(INSTALLATION)'' directory | |''build_step6and_binary_distribution.command''|''build_binary_package'' |performs ''step6'', then builds a package embbedded in a DMG file | |''build_source_disk_image.command''|''build_source_disk_image'' |builds the source tarballs distribution in a DMG file (like the one you have downloaded) | You can find [[http://crossgcc.rts-software.org/download/i386-linux-build-log.txt.gz|here]] the 448 kB gzip'ed text file of building log (step 2 to 6). I have replaced my actual path by ''MYPATH''. ==== Cleaning and Uninstalling ===== The ''cleanstepi'' steps delete files from ''$PREFIX'' directory. They do not modify ''$(INSTALLATION_DIR)'' contents. The ''cleanstep1'' step is a //clean all// operation. Other steps do not remove all files created from the corresponding //build// steps, but only some files that trigger //build// steps. ^Command File ^Makefile Goal ^Operation ^ |''clean_step2.command''|''cleanstep2'' |removes ''$(INSTALLATION)'' directory | |''clean_step3.command''|''cleanstep3'' |removes C compiler files, then performs ''cleanstep4'' | |''clean_step4.command''|''cleanstep4'' |removes ''$(MACOSX_TOOLS_PREFIX)/bin/sed'', ''$(MACOSX_TOOLS_PREFIX)/bin/msgfmt'', ''$(MACOSX_TOOLS_PREFIX)/bin/gawk'' files, then performs ''cleanstep5'' | |''clean_step5.command''|''cleanstep5'' |remove ''$(INSTALLATION)/lib/libg.a'' file, then performs ''cleanstep6'' | |''clean_step6.command''|''cleanstep6'' |remove ''$(INSTALLATION)/bin/$(TARGET)-g++'' file | ==== Where are the headers ? ==== It seems that by default the different packages do not search the headers at the same locations. This requires to copy headers from one location to an other one in order the successive builds success. There is perhaps a setting which would remove all these recopies, but I did not find it. ==== Why isn't FORTRAN provided? ==== I did not succeed in building it. Fortran requires GMP ([[http://www.swox.com/gmp/|GNU Multiple Precision Arithmetic Library]]) and MPFR ([[http://www.mpfr.org/mpfr-current/|multiple-precision floating-point computations with exact rounding]]). I have built GMP 4.1.4, with its embbedded MPFR. However, it is advised to build separately the last release (2.2.0) of MPFR. I did not succeed in building this release, even after having applied all the patches. The configure script hangs because it tries to link the ''/usr/local/i386-linux-4.0.2/lib/crt1.o'' i386 Linux object file using Mac OS X gcc. I have not found a patch for solving this. So I have tried to built Fortran 95 compiler using GMP 4.1.4, with its embbedded MPFR. But building fails after 5 minutes on a link error: it can't find ''_stderr'' nor ''_stdout''. I did not find any patch for solving that. For all these reasons, I gave up incorporating FORTRAN in the package. ==== Why isn't ADA provided? ==== Ada needs GNATS. I have successfully downloaded and built gnats 4.1.0, but I could not conclude the GCC configuration for building Ada. ==== Build Step Durations ===== Approximative durations of build steps, for an iMac G5 1,8 GHz: ^Step ^Building... ^Duration ^ |1|download tarballs (89.1 MB) |29' at 55kB/s | |2|binutils |6' | |3|C compiler |20' | |4|Mac OS X tools |11' | |5|GLIBC |35' | |6|C++ Compiler Only |25' | |6|C++, Java and Objective-C Compilers |1h 10' | ===== Build Steps Details ===== ==== Step 1: download tarballs ==== This step downloads the tarballs and puts them in the ''tarballs'' directory. If they are already present, this step does nothing. Downloads are performed with ''curl'' line command tool and use ''http'' protocol. ^Note that if you access the ''http'' through a proxy, you must change the ''CURL'' variable definition accordingly.^ ==== Step 2: building binutils ==== Building ''binutils'' is very easy: configure them, build them and install them succeeded at the first attempt. Configure parameters are ''%%--%%prefix=/usr/local/i386-linux-4.0.2'' (the installation path), ''%%--%%target=i386-linux'' for defining the target system. ==== Step 3: building C compiler ==== ==== Step 4: building Mac OS X tools ==== This step is needed as some default Mac OS X tools are not compatible with some ''configure'' scripts: * ''sed'' is required for glibc, as ''sed --version'' does not work on the default ''sed'' tool; * ''msgfmt'' is also required for glibc, and does not exist by default; we install ''gettext'' package, which includes ''msgfmt''; * ''gawk'' is required for step7. All tools are installed in ''$(MACOSX_TOOLS_PREFIX)'' directory. The following steps include the ''$(MACOSX_TOOLS_PREFIX)/bin'' path in their ''$PATH'' search path. ==== Step 5: building GLIBC ==== I have spent a lot of time for getting correct configure parameters. ==== Step 6: building other compilers ==== This is the final step: building other compilers and their libraries. Default setting builds: C (again), C++, Objective-C and Java. For building a subset, you can modify ''GCC_BUILD_ALL_PARAMETERS'' variable setting. ==== Building the binary distribution ==== I have implemented a three-stage process for the ''build_binary_package'' makefile goal: - build and install tools by calling ''step5'' goal; - use ''PackageMaker'' as command line tool, for building a package from the ''MinGW-binaries.pmproj'' project file; - build a DMG file from the package. However, using ''PackageMaker'' as command line tool is not as easy as I thought it. Performing build from GUI was working fine, althought trying to build from makefile was allways failing. **At last, I realized that PackagerMaker Version 2.1 (122) cannot build successfully from command line when the project file contains relative pathes.** So I change all relative pathes to absolute ones and build process works correctly. ^Of course, for building successfully, you must replace my absolute pathes with yours.^ The ''MinGW-binaries.pmproj'' project file uses pathes at two locations: - //Installer Interface// tab, //Show Interface Installer Editor// button, background image; the relative path would be: ''files_for_package_maker/gerwinski-gnu-head.gif''; - //Installer Interface// tab, //Show Interface Installer Editor// button, License file; the relative path would be: ''files_for_package_maker/License.txt''. ==== Building the source distribution ==== The ''build_source_disk_image'' makefile goal just builds DMG files using ''hdutil'' command line tool. Two DMG files are provided, one without source tarballs, the other with the tarballs. This is the way I distribute the source packages. ====== Release 2, december 2006 ====== For this release, I have used XCode 2.4.1. ===== Use a case-sensitive File System ===== **Use a case-sensitive file system** (see [[#case-sensitive_file_system|above]]). ===== PackageMaker 2.1.1 (123) ===== With XCode 2.4.1, PackageMaker 2.1.1 (123) is provided. This release handles relative pathes. I have modified the ''i386-linux-gcc-for-mac-binaries.pmproj'' file so that it uses now only relative pathes, making obsolete [[#building_the_binary_distribution|path adjustments]]. =====Intel and PowerPC binaries ===== This release builds Intel binaries on an Intel Mac, and ppc binaries on a PowerPC Mac. I do not plan to provide universal binaries. ===== Build logs ===== |Build log on an Intel Mac |[[http://crossgcc.rts-software.org/download/i386_linux_gcc_4_1_1_for_intel_mac.log.txt.zip|i386_linux_gcc_4_1_1_for_intel_mac.log.txt.zip (495.6 KB)]] | |Build log on a PPC Mac |[[http://crossgcc.rts-software.org/download/i386_linux_gcc_4_1_1_for_ppc_mac.log.txt.zip|i386_linux_gcc_4_1_1_for_ppc_mac.log.txt.zip (496.9 KB)]] |