[Bug bootstrap/37013] New: gcc-4.2.1 build breaks in fortran when using --with-mpfr=

["rob1weld at aol dot com" <gcc-bugzilla at gcc dot gnu dot org>]

OpenSolaris is available free from: http://opensolaris.org/

I am building gcc-4.2.1 release from:
ftp://ftp.gnu.org/gnu/gcc/gcc-4.2.1/gcc-4.2.1.tar.bz2


When building gcc on Solaris operating systems it is required (by Sun) that you
use "--prefix=...", "--with-gmp=...", "--with-mpfr=...", (and
--with-ld=/usr/ccs/bin/ld, --enable-shared, --disable-static,
--enable-threads=solaris, --enable-multilib) in order to compile gcc correctly
and, when installing, to avoid overwriting the system compiler and libraries.

Overwriting the system compiler and libraries is not a supported configuration
(of the Operating System).

I used --with-mpfr=/opt/gnu/mpfr-2.3.1 so I could use my own copy of mpfr but
while building gcc the build broke here (in gcc/fortran stage 1):

...
build/genchecksum cc1plus-dummy > cc1plus-checksum.c
gcc -c   -g -fkeep-inline-functions -DIN_GCC   -W -Wall -Wwrite-strings
-Wstrict-prototypes -Wmissing-prototypes -Wold-style-definition
-Wmissing-format-attribute    -DHAVE_CONFIG_H -I. -I. -I/aux0/gcc-4.2.1/gcc
-I/aux0/gcc-4.2.1/gcc/. -I/aux0/gcc-4.2.1/gcc/../include -I./../intl
-I/aux0/gcc-4.2.1/gcc/../libcpp/include  -I/aux0/gcc-4.2.1/gcc/../libdecnumber
-I../libdecnumber    cc1plus-checksum.c -o cc1plus-checksum.o
gcc   -g -fkeep-inline-functions -DIN_GCC   -W -Wall -Wwrite-strings
-Wstrict-prototypes -Wmissing-prototypes -Wold-style-definition
-Wmissing-format-attribute    -DHAVE_CONFIG_H  -o cc1plus \
              cp/cp-lang.o stub-objc.o cp/call.o cp/decl.o cp/expr.o cp/pt.o
cp/typeck2.o cp/class.o cp/decl2.o cp/error.o cp/lex.o cp/parser.o cp/ptree.o
cp/rtti.o cp/typeck.o cp/cvt.o cp/except.o cp/friend.o cp/init.o cp/method.o
cp/search.o cp/semantics.o cp/tree.o cp/repo.o cp/dump.o cp/optimize.o
cp/mangle.o cp/cp-objcp-common.o cp/name-lookup.o cp/cxx-pretty-print.o
cp/cp-gimplify.o tree-mudflap.o attribs.o c-common.o c-format.o c-pragma.o
c-semantics.o c-lex.o c-dump.o sol2-c.o c-pretty-print.o c-opts.o c-pch.o
c-incpath.o cppdefault.o c-ppoutput.o c-cppbuiltin.o prefix.o c-gimplify.o
c-omp.o tree-inline.o cc1plus-checksum.o main.o  libbackend.a
../libcpp/libcpp.a ../libdecnumber/libdecnumber.a ../libcpp/libcpp.a
./../intl/libintl.a  ../libiberty/libiberty.a ../libdecnumber/libdecnumber.a
gcc -c   -g -fkeep-inline-functions -DIN_GCC   -W -Wall -Wwrite-strings
-Wstrict-prototypes -Wmissing-prototypes -Wold-style-definition
-Wmissing-format-attribute    -DHAVE_CONFIG_H -I. -Ifortran
-I/aux0/gcc-4.2.1/gcc -I/aux0/gcc-4.2.1/gcc/fortran
-I/aux0/gcc-4.2.1/gcc/../include -I./../intl
-I/aux0/gcc-4.2.1/gcc/../libcpp/include  -I/aux0/gcc-4.2.1/gcc/../libdecnumber
-I../libdecnumber    /aux0/gcc-4.2.1/gcc/fortran/arith.c -o fortran/arith.o
In file included from /aux0/gcc-4.2.1/gcc/fortran/arith.c:31:
/aux0/gcc-4.2.1/gcc/fortran/gfortran.h:1229:18: error: mpfr.h: No such file or
directory
In file included from /aux0/gcc-4.2.1/gcc/fortran/arith.c:31:
/aux0/gcc-4.2.1/gcc/fortran/gfortran.h:1263: error: syntax error before
'mpfr_t'
/aux0/gcc-4.2.1/gcc/fortran/gfortran.h:1263: warning: no semicolon at end of
struct or union
/aux0/gcc-4.2.1/gcc/fortran/gfortran.h:1263: warning: no semicolon at end of
struct or union
/aux0/gcc-4.2.1/gcc/fortran/gfortran.h:1267: error: syntax error before
'mpfr_t'
...


My mpfr.h file is present in directory /opt/gnu/mpfr-2.3.1/include but the '
gcc -o fortran/arith.o ... ' command does not "-I" that directory.


-- 
           Summary: gcc-4.2.1 build breaks in fortran when using --with-
                    mpfr=
           Product: gcc
           Version: 4.2.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: bootstrap
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: rob1weld at aol dot com
 GCC build triplet: i386-pc-solaris2.11
  GCC host triplet: i386-pc-solaris2.11
GCC target triplet: i386-pc-solaris2.11


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37013