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[Mingw-notify] [ mingw-Bugs-2970986 ] gcc-4.5.0 problem: compiler cannot find mingwrt headers
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From: SourceForge.net <no...@so...> - 2010-03-17 04:12:57
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Bugs item #2970986, was opened at 2010-03-15 21:34 Message generated for change (Comment added) made by cstrauss You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=102435&aid=2970986&group_id=2435 Please note that this message will contain a full copy of the comment thread, including the initial issue submission, for this request, not just the latest update. Category: gcc Group: None Status: Open Resolution: None Priority: 5 Private: No Submitted By: Tatsuro MATSUOKA (tmacchant) Assigned to: Cesar Strauss (cstrauss) Summary: gcc-4.5.0 problem: compiler cannot find mingwrt headers Initial Comment: Hello This is at first posted to [Mingw-users] list. http://old.nabble.com/gcc-4.5.0-%3A-Is-flag--I-mingw-include-always-needed---td27901832.html Thanks to Earnie and Keith Marshall for your immediate response. Sorry for my bad writing my reports. My phenomena that I met may come from my MinGW is not installed to C:\MinGW but to C:\Programs\MinGW C:\Programs\MinGW has been used for in my favor. (I do not want to make directories in root of the drive if change of the directory position is allow to be moved.) I tried to compile test.c attached on Msys sh shell When MinGW is installed in C:\Programs\MinGW. The result is $ gcc -o test.o test.c test.c:1:19: fatal error: stdio.h: No such file or directory compilation terminated. $ gcc -o test.o test.c -I/mingw/include Msys fstab for mingw c:/Programs/mingw /mingw I moved my MinGW directory from C:\Program\MinGW to C;\MinGW Msys fstab for mingw c:/mingw /mingw This time Tatsu@Shiro ~/program/C/gcctest $ gcc -o test.o test.c worked fine without -I/mingw/include For gcc-3.4.x, gcc-4.4.0, the location of MinGW in not C:\MinGW have been caused no errors from Msys sh shell when Msys fstab for mingw is set like c:/Programs/mingw /mingw Anyway I use at the moment, C:/MinGW instead of C:\Program\MinGW Regards Tatsuro ---------------------------------------------------------------------- >Comment By: Cesar Strauss (cstrauss) Date: 2010-03-17 01:12 Message: Thanks for the report. I have identified the issue, as well as a potential fix. During the gcc build under MSYS, the Makefile passed the include pathname as: -DLOCAL_INCLUDE_DIR=\"/mingw/lib/gcc/mingw32/4.5.0/../../../..include\" For some reason, it ends-ups being translated by MSYS as: -DLOCAL_INCLUDE_DIR=\"c:/mingw/include\" This interferes with the relocation support. I hope to avoid triggering the MSYS path translation by configuring with --prefix=c:/mingw instead of /mingw. Cesar ---------------------------------------------------------------------- Comment By: Keith Marshall (keithmarshall) Date: 2010-03-16 10:42 Message: I can confirm this as a regression affecting gcc-4.5.0_20100311-1-mingw32; it may not be apparent to those who install with sysroot == c:/mingw, but it is readily observed when an alternative, but equally valid sysroot is chosen, and no prior installation in c:/mingw exists. To reproduce, with parallel installations in d:/usr/MinGW-3.4.5 (GCC-3.4.5) and in d:/usr/MinGW-4.5.0 (GCC-4.5), (and none in C:/MinGW), I have run (under MSYS-1.0.11): $ umount /mingw $ mount d:/usr/mingw-4.5.0 /mingw $ echo '#include <stdio.h>' | gcc -E -o nul -xc - <stdin>:1:19: fatal error: stdio.h: No such file or directory compilation terminated. (The header file is definitely present in the required path): $ ls -l /mingw/include/stdio.h -rw-r--r-- 1 keith ... 22047 Mar 7 03:31 /mingw/include/stdio.h For comparison, the same with GCC-3.4.5: $ umount /mingw $mount d:/usr/mingw-3.4.5 /mingw $ echo '#include <stdio.h>' | gcc -E -o nul -xc - completes silently, (i.e. without error). Repeating the above, with the '-v' option added, reveals the regression; first for the GCC-3.4.5 case: $ echo '#include <stdio.h>' | gcc -v -E -o nul -xc - Reading specs from d:/usr/mingw-3.4.5/bin/../lib/gcc/mingw32/3.4.5/specs Configured with: ../gcc-3.4.5/configure --with-gcc --with-gnu-ld --with-gnu-as --host=mingw32 --target=mingw32 --prefix=/mingw --enable-threads --disable-nls --enable-languages=c,c++,f77,ada,objc,java --disable-win32-registry --disable-shared --enable-sjlj-exceptions --enable-libgcj --disable-java-awt --without-x --enable-java-gc=boehm --disable-libgcj-debug --enable-interpreter --enable-hash-synchronization --enable-libstdcxx-debug Thread model: win32 gcc version 3.4.5 (mingw special) d:/usr/mingw-3.4.5/bin/../libexec/gcc/mingw32/3.4.5/cc1.exe -E -quiet -v -iprefix d:\usr\mingw-3.4.5\bin\../lib/gcc/mingw32/3.4.5/ -Id:/usr/local/include - -o nul.exe ignoring nonexistent directory "d:/usr/mingw-3.4.5/bin/../lib/gcc/mingw32/3.4.5/../../../../mingw32/include" ignoring nonexistent directory "/mingw/include" ignoring nonexistent directory "/mingw/include" ignoring nonexistent directory "/mingw/lib/gcc/mingw32/3.4.5/include" ignoring nonexistent directory "/mingw/mingw32/include" ignoring nonexistent directory "/mingw/include" #include "..." search starts here: #include <...> search starts here: d:/usr/local/include d:/usr/mingw-3.4.5/bin/../lib/gcc/mingw32/3.4.5/../../../../include d:/usr/mingw-3.4.5/bin/../lib/gcc/mingw32/3.4.5/include End of search list. Ignoring the addition of d:/usr/local/include to the include search path, (I add it using a local specs file customisation), that all seems as it should be; mingwrt header files are found on the second path, d:/usr/mingw-3.4.5/bin/../lib/gcc/mingw32/3.4.5/../../../../include, (which simplifies to d:/usr/mingw-3.4.5/include, the standard installation path for these headers, with a sysroot == d:/usr/mingw-3.4.5). Repeating for the GCC-4.5.0 case: $ umount /mingw $ mount d:/usr/mingw-4.5.0 /mingw $ echo '#include <stdio.h>' | gcc -v -E -o nul -xc - Using built-in specs. COLLECT_GCC=d:\usr\mingw-4.5.0\bin\gcc.exe COLLECT_LTO_WRAPPER=d:/usr/mingw-4.5.0/bin/../libexec/gcc/mingw32/4.5.0 /lto-wrapper.exe Target: mingw32 Configured with: ../gcc-4.5.0_20100311/configure --enable-languages=c,c++,ada,fortran,objc,obj-c++ --disable-sjlj-exceptions --with-dwarf2 --enable-shared --enable-libgomp --disable-win32-registry --enable-libstdcxx-debug --enable-version-specific-runtime-libs --disable-werror --build=mingw32 --prefix=/mingw Thread model: win32 gcc version 4.5.0 20100311 (experimental) (GCC) COLLECT_GCC_OPTIONS='-v' '-E' '-o' 'nul' '-mtune=i386' '-march=i386' d:/usr/mingw-4.5.0/bin/../libexec/gcc/mingw32/4.5.0/cc1.exe -E -quiet -v -iprefix d:\usr\mingw-4.5.0\bin\../lib/gcc/mingw32/4.5.0/ - -o nul -mtune=i386 -march=i386 ignoring nonexistent directory "c:/mingw/include" ignoring nonexistent directory "/mingw/include" ignoring duplicate directory "d:/usr/mingw-4.5.0/lib/gcc/../../lib/gcc/mingw32/4.5.0/include" ignoring duplicate directory "d:/usr/mingw-4.5.0/lib/gcc/../../lib/gcc/mingw32/4.5.0/include-fixed" ignoring nonexistent directory "d:/usr/mingw-4.5.0/lib/gcc/../../mingw32/include" ignoring nonexistent directory "/mingw/include" #include "..." search starts here: #include <...> search starts here: d:\usr\mingw-4.5.0\bin\../lib/gcc/mingw32/4.5.0/include d:\usr\mingw-4.5.0\bin\../lib/gcc/mingw32/4.5.0/include-fixed End of search list. <stdin>:1:19: fatal error: stdio.h: No such file or directory compilation terminated. gcc.exe: nul: Permission denied Note the hard coded addition of the non-existent c:/mingw/include directory to the include search path; the presence of this is, in itself and IMO, an error, which explains why those with sysroot == c:/mingw may not notice the regression. On its own, this error is innocuous; the regression is that the required <sysroot>/bin/../lib/gcc/mingw32/3.4.5/../../../../include has been omitted, (perhaps having been unintentionally replaced by the hard coded c:/mingw/include, but I offer no evidence to support this hypothesis). ---------------------------------------------------------------------- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=102435&aid=2970986&group_id=2435 |