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Date: Fri, 25 Feb 2005 14:51:20 +0100 (MET)
From: "Rolf Ebert" <rolf DOT ebert DOT gcc AT gmx DOT de>
To: cygwin AT cygwin DOT com
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Subject: exp. gcc-ada-3.4.1-1 does not support -mno-cygwin
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When compiling Ada programs without cygwin1.dll one can use -mno-cygwin with
the standard gcc (currently 3.3.1-3).  

This does not work anymore with gcc-3.4.1-1.  I get lots of unresolved
externals.

gnatlink harness.ali -g -mno-cygwin
/usr/lib/gcc/i686-pc-cygwin/3.4.1/adalib/libgnat.a(sysdep.o)(.text+0x6a):
undefined reference to `_tcgetattr'
/usr/lib/gcc/i686-pc-cygwin/3.4.1/adalib/libgnat.a(sysdep.o)(.text+0x91):
undefined reference to `_tcsetattr'
/usr/lib/gcc/i686-pc-cygwin/3.4.1/adalib/libgnat.a(sysdep.o)(.text+0x14c):
undefined reference to `_tcsetattr'
/usr/lib/gcc/i686-pc-cygwin/3.4.1/adalib/libgnat.a(sysdep.o)(.text+0x25):
undefined reference to `_ttyname'
/usr/lib/gcc/i686-pc-cygwin/3.4.1/adalib/libgnat.a(sysdep.o)(.text+0x1f5):
undefined reference to `_localtime_r'
/usr/lib/gcc/i686-pc-cygwin/3.4.1/adalib/libgnat.a(s-osprim.o)(.text+0x1c):
undefined reference to `_gettimeofday'
/usr/lib/gcc/i686-pc-cygwin/3.4.1/adalib/libgnat.a(s-osprim.o)(.text+0x1cc):
undefined reference to `_nanosleep'
/usr/lib/gcc/i686-pc-cygwin/3.4.1/adalib/libgnat.a(raise.o)(.text+0x2c1):
undefined reference to `___getreent'
/usr/lib/gcc/i686-pc-cygwin/3.4.1/adalib/libgnat.a(raise.o)(.text+0x2e1):
undefined reference to `___getreent'
/usr/lib/gcc/i686-pc-cygwin/3.4.1/adalib/libgnat.a(raise.o)(.text+0x345):
undefined reference to `___getreent'
/usr/lib/gcc/i686-pc-cygwin/3.4.1/adalib/libgnat.a(cio.o)(.text+0x7):
undefined reference to `___getreent'
/usr/lib/gcc/i686-pc-cygwin/3.4.1/adalib/libgnat.a(cio.o)(.text+0x47):
undefined reference to `___getreent'
/usr/lib/gcc/i686-pc-cygwin/3.4.1/adalib/libgnat.a(cio.o)(.text+0x77): more
undefined references to `___getreent' follow
/usr/lib/gcc/i686-pc-cygwin/3.4.1/adalib/libgnat.a(adaint.o)(.text+0x5e1):
undefined reference to `_getppid'
/usr/lib/gcc/i686-pc-cygwin/3.4.1/adalib/libgnat.a(adaint.o)(.text+0x63f):
undefined reference to `_link'
/usr/lib/gcc/i686-pc-cygwin/3.4.1/adalib/libgnat.a(adaint.o)(.text+0x884):
undefined reference to `_lstat'
/usr/lib/gcc/i686-pc-cygwin/3.4.1/adalib/libgnat.a(adaint.o)(.text+0x8c3):
undefined reference to `_fork'
/usr/lib/gcc/i686-pc-cygwin/3.4.1/adalib/libgnat.a(adaint.o)(.text+0x8e5):
undefined reference to `_waitpid'
/usr/lib/gcc/i686-pc-cygwin/3.4.1/adalib/libgnat.a(adaint.o)(.text+0x940):
undefined reference to `_fork'
/usr/lib/gcc/i686-pc-cygwin/3.4.1/adalib/libgnat.a(adaint.o)(.text+0x9a2):
undefined reference to `_waitpid'
/usr/lib/gcc/i686-pc-cygwin/3.4.1/adalib/libgnat.a(adaint.o)(.text+0x9e1):
undefined reference to `_waitpid'
/usr/lib/gcc/i686-pc-cygwin/3.4.1/adalib/libgnat.a(adaint.o)(.text+0xa5):
undefined reference to `_readlink'
/usr/lib/gcc/i686-pc-cygwin/3.4.1/adalib/libgnat.a(adaint.o)(.text+0xb5):
undefined reference to `_symlink'
collect2: ld returned 1 exit status

Despite using -mno-cygwin the linker tries to link with the native cygwin
libgnat.a and not with the mingw libgnat.a.

Is that a problem of gcc itself (and I should report that as a bug in the
gcc problem database) or is it a configuration problem (and a cygwin
problem) or is it a user problem (i.e. I did something wrong, most
probably)?


    Rolf

$ cygcheck -s -v  -r | grep gcc
gcc                  3.4.1-1
gcc-ada              3.4.1-1
gcc-core             3.4.1-1
gcc-g++              3.4.1-1
gcc-mingw            20040810-1
gcc-mingw-ada        20040822-1
gcc-mingw-core       20040822-1
gcc-mingw-g++        20040822-1


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