[Bug other/46334] C++ compiler gets g++ switch even if it isn't g++

["jay.krell at cornell dot edu" <gcc-bugzilla at gcc dot gnu dot org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46334

--- Comment #3 from Jay <jay.krell at cornell dot edu> 2010-11-07 23:10:50 UTC ---
jkrell@login [login]:~/src > ssh current10s
Last login: Sun Nov  7 23:09:51 2010 from login.bo.opencs
Sun Microsystems Inc.   SunOS 5.10      Generic January 2005
-bash-4.1$ cd obj
-bash-4.1$ mkdir b
-bash-4.1$ cd b
-bash-4.1$ which gcc
no gcc in /home/jkrell/sparc/bin /opt/csw/bin /usr/bin /usr/ccs/bin
/opt/csw/bin
-bash-4.1$ export CC=/opt/csw/gcc4/bin/gcc
-bash-4.1$ $CC -v
Using built-in specs.
Target: sparc-sun-solaris2.8
Configured with: ../gcc-4.3.3/configure --prefix=/opt/csw/gcc4
--exec-prefix=/opt/csw/gcc4 --with-gnu-as --with-as=/opt/csw/bin/gas
--without-gnu-ld --with-ld=/usr/ccs/bin/ld --enable-nls --with-included-gettext
--with-libiconv-prefix=/opt/csw --with-x --with-mpfr=/opt/csw
--with-gmp=/opt/csw --enable-java-awt=xlib --enable-libada --enable-libssp
--enable-objc-gc --enable-threads=posix --enable-stage1-languages=c
--enable-languages=ada,c,c++,fortran,java,objc
Thread model: posix
gcc version 4.3.3 (GCC) 
-bash-4.1$ export CXX=CC
-bash-4.1$ $CXX -V
CC: Sun C++ 5.9 SunOS_sparc 2007/05/03
-bash-4.1$ which ar
/usr/ccs/bin/ar
-bash-4.1$ which gmake
/opt/csw/bin/gmake
-bash-4.1$ which make
/usr/ccs/bin/make
-bash-4.1$ export MAKE=gmake
-bash-4.1$ uname -a
SunOS current10s 5.10 Generic_142909-17 sun4v sparc SUNW,SPARC-Enterprise-T5220


/home/jkrell/src/gcc-trunk/configure -prefix=$HOME/test2 -enable-build-with-cxx
&& $MAKE

.....


gmake[3]: Entering directory `/home/jkrell/obj/b/libcpp'
source='/home/jkrell/src/gcc-trunk/libcpp/charset.c' object='charset.o'
libtool=no DEPDIR=.deps depmode=dashXmstdout /bin/bash
/home/jkrell/src/gcc-trunk/libcpp/../depcomp CC 
-I/home/jkrell/src/gcc-trunk/libcpp -I.
-I/home/jkrell/src/gcc-trunk/libcpp/../include -I./../intl
-I/home/jkrell/src/gcc-trunk/libcpp/include  -g -W -Wall -Wwrite-strings
-Wmissing-format-attribute -pedantic -Wno-long-long 
-I/home/jkrell/src/gcc-trunk/libcpp -I.
-I/home/jkrell/src/gcc-trunk/libcpp/../include -I./../intl
-I/home/jkrell/src/gcc-trunk/libcpp/include  -c
/home/jkrell/src/gcc-trunk/libcpp/charset.c
CC: Warning: Option -W passed to ld, if ld is invoked, ignored otherwise
CC: Warning: Option -Wall passed to ld, if ld is invoked, ignored otherwise
CC: Warning: Option -Wwrite-strings passed to ld, if ld is invoked, ignored
otherwise
CC: Warning: Option -Wmissing-format-attribute passed to ld, if ld is invoked,
ignored otherwise
CC: Warning: Option -pedantic passed to ld, if ld is invoked, ignored otherwise
CC: Warning: Option -Wno-long-long passed to ld, if ld is invoked, ignored
otherwise


attached toplevel config.log and libcpp/config.log
excerpt:

configure:4440: checking whether /opt/csw/gcc4/bin/gcc supports -pedantic
-Wno-long-long
WARN_PEDANTIC='-pedantic -Wno-long-long'


so you can see, CC and CXX are configured the same by autoconf, even though
they
might not be related.