[Bug bootstrap/67546] New: bootstrap broken on x86_64-w64-mingw32, error: '::unsetenv' has not been declared in gcc.c

[Bug bootstrap/67546] New: bootstrap broken on x86_64-w64-mingw32, error: '::unsetenv' has not been declared in gcc.c

[rainer@emrich-ebersheim.de]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67546

            Bug ID: 67546
           Summary: bootstrap broken on x86_64-w64-mingw32, error:
                    '::unsetenv' has not been declared in gcc.c
           Product: gcc
           Version: 6.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: bootstrap
          Assignee: unassigned at gcc dot gnu.org
          Reporter: rainer@emrich-ebersheim.de
  Target Milestone: ---

Bootstrapping trunk revision 227528, native x86_64-w64-mingw32, I get:

g++ -std=gnu++98 -fno-PIE -c  -DSTANDARD_STARTFILE_PREFIX=\"../../../\"
-DSTANDARD_EXEC_PREFIX=\"/opt/devel/gnu/gcc/MINGW_NT/x86_64-w64-mingw32/mingw-w64-runtime-trunk-svn/gcc-6.0.0/lib/gcc/\"
-DSTANDARD_LIBEXEC_PREFIX=\"/opt/devel/gnu/gcc/MINGW_NT/x86_64-w64-mingw32/mingw-w64-runtime-trunk-svn/gcc-6.0.0/libexec/gcc/\"
-DDEFAULT_TARGET_VERSION=\"6.0.0\"
-DDEFAULT_REAL_TARGET_MACHINE=\"x86_64-w64-mingw32\"
-DDEFAULT_TARGET_MACHINE=\"x86_64-w64-mingw32\"
-DSTANDARD_BINDIR_PREFIX=\"/opt/devel/gnu/gcc/MINGW_NT/x86_64-w64-mingw32/mingw-w64-runtime-trunk-svn/gcc-6.0.0/bin/\"
-DTOOLDIR_BASE_PREFIX=\"../../../../\" -DACCEL_DIR_SUFFIX=\"\"
-DTARGET_SYSTEM_ROOT=\"/x86_64-w64-trunk\"  -DENABLE_SHARED_LIBGCC
-DCONFIGURE_SPECS="\"\"" -g -DIN_GCC     -fno-exceptions -fno-rtti
-fasynchronous-unwind-tables -W -Wall -Wno-narrowing -Wwrite-strings
-Wcast-qual -Wno-format -Wmissing-format-attribute -Woverloaded-virtual
-pedantic -Wno-long-long -Wno-variadic-macros -Wno-overlength-strings  
-DHAVE_CONFIG_H -I. -I.
-I../../../../../../../opt/devel/gnu/src/gcc-mingw-w64/gcc-6.0.0/gcc
-I../../../../../../../opt/devel/gnu/src/gcc-mingw-w64/gcc-6.0.0/gcc/.
-I../../../../../../../opt/devel/gnu/src/gcc-mingw-w64/gcc-6.0.0/gcc/../include
-I./../intl
-I../../../../../../../opt/devel/gnu/src/gcc-mingw-w64/gcc-6.0.0/gcc/../libcpp/include
-I/opt/devel/SCRATCH/tmp.xPutziWahX/install/include
-I/opt/devel/SCRATCH/tmp.xPutziWahX/install/include
-I/opt/devel/SCRATCH/tmp.xPutziWahX/install/include 
-I../../../../../../../opt/devel/gnu/src/gcc-mingw-w64/gcc-6.0.0/gcc/../libdecnumber
-I../../../../../../../opt/devel/gnu/src/gcc-mingw-w64/gcc-6.0.0/gcc/../libdecnumber/bid
-I../libdecnumber
-I../../../../../../../opt/devel/gnu/src/gcc-mingw-w64/gcc-6.0.0/gcc/../libbacktrace
-I/opt/devel/SCRATCH/tmp.xPutziWahX/install/include  -o gcc.o -MT gcc.o -MMD
-MP -MF ./.deps/gcc.TPo
../../../../../../../opt/devel/gnu/src/gcc-mingw-w64/gcc-6.0.0/gcc/gcc.c
../../../../../../../opt/devel/gnu/src/gcc-mingw-w64/gcc-6.0.0/gcc/gcc.c: In
member function 'void env_manager::restore()':
../../../../../../../opt/devel/gnu/src/gcc-mingw-w64/gcc-6.0.0/gcc/gcc.c:154:2:
error: '::setenv' has not been declared
  ::setenv (item->m_key, item->m_value, 1);
  ^
../../../../../../../opt/devel/gnu/src/gcc-mingw-w64/gcc-6.0.0/gcc/gcc.c:156:2:
error: '::unsetenv' has not been declared
  ::unsetenv (item->m_key);
  ^
Makefile:1077: recipe for target 'gcc.o' failed
make[3]: *** [gcc.o] Error 1
make[3]: Leaving directory
'/opt/devel/SCRATCH/tmp.xPutziWahX/gcc-6.0.0/gcc-6.0.0/gcc'
Makefile:4379: recipe for target 'all-stage1-gcc' failed


configure:

../../../../../../opt/devel/gnu/src/gcc-mingw-w64/gcc-6.0.0/configure
--prefix=/opt/devel/gnu/gcc/MINGW_NT/x86_64-w64-mingw32/mingw-w64-runtime-trunk-svn/gcc-6.0.0
--with-gnu-as
--with-as=/opt/devel/gnu/gcc/MINGW_NT/x86_64-w64-mingw32/mingw-w64-runtime-trunk-svn/gcc-6.0.0/bin/as
--with-gnu-ld
--with-ld=/opt/devel/gnu/gcc/MINGW_NT/x86_64-w64-mingw32/mingw-w64-runtime-trunk-svn/gcc-6.0.0/bin/ld
--build=x86_64-w64-mingw32 --enable-threads=posix
--enable-languages=c,ada,c++,fortran,java,lto,objc,obj-c++
--with-gmp-include=/opt/devel/SCRATCH/tmp.xPutziWahX/install/include
--with-gmp-lib=/opt/devel/SCRATCH/tmp.xPutziWahX/install/lib64
--with-mpfr-include=/opt/devel/SCRATCH/tmp.xPutziWahX/install/include
--with-mpfr-lib=/opt/devel/SCRATCH/tmp.xPutziWahX/install/lib64
--with-mpc-include=/opt/devel/SCRATCH/tmp.xPutziWahX/install/include
--with-mpc-lib=/opt/devel/SCRATCH/tmp.xPutziWahX/install/lib64
--with-isl-include=/opt/devel/SCRATCH/tmp.xPutziWahX/install/include
--with-isl-lib=/opt/devel/SCRATCH/tmp.xPutziWahX/install/lib64
--with-local-prefix=/opt/devel/tec/devel/MINGW_NT/x86_64-w64-mingw32/mingw-w64-runtime-trunk-svn/gcc-6.0.0
--enable-libgomp --enable-fully-dynamic-string --disable-multilib
--enable-checking=release --disable-werror --with-sysroot=/x86_64-w64-trunk

Last known to work revision: 226966

[Bug bootstrap/67546] bootstrap broken on x86_64-w64-mingw32, error: '::unsetenv' has not been declared in gcc.c

[ktietz at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67546

Kai Tietz <ktietz at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2015-09-11
                 CC|                            |ktietz at gcc dot gnu.org
     Ever confirmed|0                           |1

--- Comment #1 from Kai Tietz <ktietz at gcc dot gnu.org> ---
I added to mingw-w64's libwinpthread a work-a-round for this sloopy code in
libgomp.  Nevertheless issue should be fixed IMO in libgomp, too

[Bug bootstrap/67546] bootstrap broken on x86_64-w64-mingw32, error: '::unsetenv' has not been declared in gcc.c

[ktietz at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67546

--- Comment #3 from Kai Tietz <ktietz at gcc dot gnu.org> ---
Thanks Rainer for pointing on this.  Yes, comment wasn't intended for this bug.
 I added comment to proper pr ...

This issue is related to the fact that msvcrt doesn't provide unsetenv (as it
doesn't provide setenv).  Instead all this functionality needs to be expressed
via getenv/putenv instead.

[Bug bootstrap/67546] bootstrap broken on x86_64-w64-mingw32, error: '::unsetenv' has not been declared in gcc.c

[ktietz at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67546

Kai Tietz <ktietz at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Target|x86_64-w64-mingw32          |*-*-mingw32
           Priority|P3                          |P1
                 CC|                            |dmalcolm at gcc dot gnu.org

--- Comment #4 from Kai Tietz <ktietz at gcc dot gnu.org> ---
Hi David,

this issue was introduced by your commit done at 2015-08-25

[Bug bootstrap/67546] bootstrap broken on x86_64-w64-mingw32, error: '::unsetenv' has not been declared in gcc.c

[dmalcolm at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67546

--- Comment #5 from David Malcolm <dmalcolm at gcc dot gnu.org> ---
Is this a duplicate of PR 67363?

[Bug bootstrap/67546] bootstrap broken on x86_64-w64-mingw32, error: '::unsetenv' has not been declared in gcc.c

[ktietz at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67546

--- Comment #6 from Kai Tietz <ktietz at gcc dot gnu.org> ---
Initially in PR/67363 just the missing strndup due failed libiberty-linking was
noticed.  Later comments are duplicate of this.
So feel free to mark one of these bugs as duplicate, if you prefer.

[Bug bootstrap/67546] bootstrap broken on x86_64-w64-mingw32, error: '::unsetenv' has not been declared in gcc.c

[rainer@emrich-ebersheim.de]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67546

Rainer Emrich <rainer@emrich-ebersheim.de> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |DUPLICATE

--- Comment #7 from Rainer Emrich <rainer@emrich-ebersheim.de> ---
I think it's really a duplicate of 67363.

*** This bug has been marked as a duplicate of bug 67363 ***