[Bug ada/14435] [4.2 Regression] gnatchop cannot use the compiled compiler in Ada's testsuite because of changed GCC_EXEC_PREFIX semantics

["hjl at lucon dot org" <gcc-bugzilla at gcc dot gnu dot org>]

------- Comment #20 from hjl at lucon dot org  2006-01-26 14:47 -------
Created an attachment (id=10733)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=10733&action=view)
A testcase

[hjl@gnu-12 prefix]$ make
gcc --version
gcc (GCC) 3.2.3 20030502 (Red Hat Linux 3.2.3-53)
Copyright (C) 2002 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

GCC_EXEC_PREFIX=./ gcc -S foo.i | grep GOOD || exit 1
GOOD
[hjl@gnu-12 prefix]$

[hjl@gnu-16 prefix]$ make
gcc --version
gcc (GCC) 3.4.4 20050721 (Red Hat 3.4.4-2)
Copyright (C) 2004 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

GCC_EXEC_PREFIX=./ gcc -S foo.i | grep GOOD || exit 1
make: *** [foo.s] Error 1
[hjl@gnu-16 prefix]$

With my patch, I got

[hjl@gnu-16 prefix]$ make
/export/build/gnu/gcc/build-x86_64-linux/./prev-gcc//xgcc --version
xgcc (GCC) 4.2.0 20060126 (experimental) [trunk revision 110254 clean]
Copyright (C) 2006 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

GCC_EXEC_PREFIX=./ /export/build/gnu/gcc/build-x86_64-linux/./prev-gcc//xgcc -S
foo.i | grep GOOD || exit 1
GOOD
[hjl@gnu-16 prefix]$


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14435