Mailing-List: contact cygwin-help AT sourceware DOT cygnus DOT com; run by ezmlm List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner AT sources DOT redhat DOT com Delivered-To: mailing list cygwin AT sources DOT redhat DOT com Date: Mon, 5 Feb 2001 18:55:13 +0000 (GMT) From: Prof Brian D Ripley To: Subject: specs file for gcc-2.95.2-7 and -mno-cygwin Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII I believe there are several problems in using gcc-2.95.2-7.tar.gz with mingw-20010130-1.tar.gz (the latest on the mirror I use), and I will append a patch to the specs file which addresses these. 1) mingw-20010130-1.tar.gz unpacks into /usr/include/mingw32, but the specs file has `mingw' in several places. I've assumed the specs file is the wrong one here. 2) The mingw(32) files are selected by -idirafter, and so come after those in /usr/lib/gcc-lib/i686-pc-cygwin/2.95.2-7/include in the system include path. This is wrong at least in the case of float.h, where the mingw version must take precedence. Maybe -isystem /usr/local/include/mingw was just a mistake. 3) The -mno-cygwin build is now targeted at msvcrt.dll (good). However, the mingw header files default to target crtdll.dll unless __MSVCRT__ is set, and it has not been. 4) `*mingw_include_path: i686-pc-cygwin' seems out of date : the mingw include files are no longer installed there. 5) I rather suspect from the header files that __MINGW32__ should be 0.3 not 0.2. I usually use the real mingw compilers to compile the GNU R project (http://www.r-project.org) but a user complained that it no longer compiled under cygwin, which led me to investigate this. I have not attempted to sort out the g++ header file paths, as without a mingw version of libstdc++ (AFAICS) there is little mileage in compiling C++ under -mno-cygwin, and I don't have need of it. diff -u follows: --- specs.orig Tue Jan 30 21:38:32 2001 +++ specs Sat Feb 3 18:22:32 2001 @@ -5,7 +5,7 @@ *cpp: --remap %(cpp_cpu) %{posix:-D_POSIX_SOURCE} %{!mno-cygwin:-D__CYGWIN32__ -D__CYGWIN__ -Dunix -D__unix__ -D__unix -isystem /usr/local/include -idirafter /usr/include} %{mno-win32: %{mno-cygwin: %emno-cygwin and mno-win32 are not compatible}} %{mno-cygwin:-DWIN32 -D__WIN32__ -D__MINGW32__=0.2 %{mthreads:-D_MT} -isystem /usr/local/include/mingw -idirafter /usr/include/mingw -iwithprefixbefore ../../../../mingw/include/g++-3 -iwithprefixbefore ../../../../mingw/include -iwithprefixbefore ../../../../mingw32/include/g++-3 -iwithprefixbefore ../../../../mingw32/include } %{mwin32:-DWIN32 -D_WIN32 -D__WIN32 -D__WIN32__ -DWINNT -idirafter /usr/include/w32api} +-remap %(cpp_cpu) %{posix:-D_POSIX_SOURCE} %{!mno-cygwin:-D__CYGWIN32__ -D__CYGWIN__ -Dunix -D__unix__ -D__unix -isystem /usr/local/include -idirafter /usr/include} %{mno-win32: %{mno-cygwin: %emno-cygwin and mno-win32 are not compatible}} %{mno-cygwin:-DWIN32 -D__WIN32__ -D__MINGW32__=0.3 -D__MSVCRT__ %{mthreads:-D_MT} -isystem /usr/include/mingw32 -idirafter /usr/include/mingw32 -iwithprefixbefore ../../../../mingw32/include/g++-3 -iwithprefixbefore ../../../../mingw32/include -iwithprefixbefore ../../../../mingw32/include/g++-3 -iwithprefixbefore ../../../../mingw32/include } %{mwin32:-DWIN32 -D_WIN32 -D__WIN32 -D__WIN32__ -DWINNT -idirafter /usr/include/w32api} *cc1: %(cc1_spec) @@ -80,7 +80,7 @@ %{!mcpu*: %{m386:-mcpu=i386 -march=i386} %{m486:-mcpu=i486 -march=i486} %{mpentium:-mcpu=pentium} %{mpentiumpro:-mcpu=pentiumpro}} *mingw_include_path: -i686-pc-cygwin + *link_command: %{!fsyntax-only: %{!c:%{!M:%{!MM:%{!E:%{!S:%(linker) %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} %{r} %{s} %{t} %{u*} %{x} %{z} %{Z} %{!A:%{!nostdlib:%{!nostartfiles:%S}}} %{static:} %{L*} %D %o %{!nostdlib:%{!nodefaultlibs:%G %L %G}} %{!A:%{!nostdlib:%{!nostartfiles:%E}}} %{T*} -- Brian D. Ripley, ripley AT stats DOT ox DOT ac DOT uk Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/ University of Oxford, Tel: +44 1865 272861 (self) 1 South Parks Road, +44 1865 272860 (secr) Oxford OX1 3TG, UK Fax: +44 1865 272595 -- Want to unsubscribe from this list? Check out: http://cygwin.com/ml/#unsubscribe-simple