[bug-gettext] Building gettext-0.18.3.2 for G4 processor fails in unsetenv.c

[Peter Dyballa]

Hello!

Configure determines:

        time env LANG=C 
PATH=/Developer45/usr/bin:/usr/local/texlive/2013/bin/x86_64-darwin:$PATH 
./configure --target=ppc-apple-darwin10.8.0 --build=i686-apple-darwin10.8.0 
--prefix=.../wp2latex.3.65/build --libdir=.../wp2latex.3.65/build/lib-G4 
--enable-shared=no --disable-csharp --disable-openmp --disable-acl 
--disable-libasprintf --disable-rpath --with-pic 
CPPFLAGS="-I.../wp2latex.3.65/build/include" CFLAGS="-arch ppc -isysroot 
/Developer45/SDKs/MacOSX10.4u.sdk -mmacosx-version-min=10.4 -mcpu=G4 -m32 -H 
-pipe -fPIC -fast -mtune=G4 -mpowerpc-gfxopt -faltivec -maltivec -mabi=altivec 
-pthread -finline-functions" LDFLAGS="-arch ppc -Wl,-dead_strip_dylibs 
-Wl,-bind_at_load -Wl,-t" CC=gcc-4.0 CPP=cpp-4.0 CXX=g++-4.0 CXXCPP="g++-4.0 
-E" LD=gcc-4.0 OBJDUMP=gobjdump
        .
        .
        .
        checking whether unsetenv is declared without a macro... yes
        .
        .
        .
        checking whether unsetenv is declared... yes
        .
        .
        .
        checking for unsetenv... yes
        checking for unsetenv() return type... int
        checking whether unsetenv obeys POSIX… no

and then fails:

        /bin/sh ../libtool  --tag=CC   --mode=compile gcc-4.0 -std=gnu99 
-DHAVE_CONFIG_H -DEXEEXT=\"\" -DEXEEXT=\"\" -DEXEEXT=\"\" -I. -I..  -I../intl 
-I../intl -I.. -I.. -DDEPENDS_ON_LIBICONV=1 -DDEPENDS_ON_LIBINTL=1    
-I///usr/include/libxml2 -I./libcroco  -I.../wp2latex.3.65/build/include  -arch 
ppc -isysroot /Developer45/SDKs/MacOSX10.4u.sdk -mmacosx-version-min=10.4 
-mcpu=G4 -m32 -H -pipe -fPIC -fast -mtune=G4 -mpowerpc-gfxopt -faltivec 
-maltivec -mabi=altivec -pthread -finline-functions -c -o unsetenv.lo unsetenv.c
        libtool: compile:  gcc-4.0 -std=gnu99 -DHAVE_CONFIG_H -DEXEEXT=\"\" 
-DEXEEXT=\"\" -DEXEEXT=\"\" -I. -I.. -I../intl -I../intl -I.. -I.. 
-DDEPENDS_ON_LIBICONV=1 -DDEPENDS_ON_LIBINTL=1 -I///usr/include/libxml2 
-I./libcroco -I.../wp2latex.3.65/build/include -arch ppc -isysroot 
/Developer45/SDKs/MacOSX10.4u.sdk -mmacosx-version-min=10.4 -mcpu=G4 -m32 -H 
-pipe -fPIC -fast -mtune=G4 -mpowerpc-gfxopt -faltivec -maltivec -mabi=altivec 
-pthread -finline-functions -c unsetenv.c  -fno-common -DPIC -o unsetenv.o
        . ../config.h
        . ./stdlib.h
        .. /Developer45/SDKs/MacOSX10.4u.sdk/usr/include/stdlib.h
        ... /Developer45/SDKs/MacOSX10.4u.sdk/usr/include/sys/cdefs.h
        ... /Developer45/SDKs/MacOSX10.4u.sdk/usr/include/_types.h
        .... /Developer45/SDKs/MacOSX10.4u.sdk/usr/include/sys/_types.h
        ..... /Developer45/SDKs/MacOSX10.4u.sdk/usr/include/machine/_types.h
        ...... /Developer45/SDKs/MacOSX10.4u.sdk/usr/include/ppc/_types.h
        ... ./sys/wait.h
        .... /Developer45/SDKs/MacOSX10.4u.sdk/usr/include/sys/wait.h
        ..... /Developer45/SDKs/MacOSX10.4u.sdk/usr/include/sys/signal.h
        ...... /Developer45/SDKs/MacOSX10.4u.sdk/usr/include/sys/appleapiopts.h
        ...... /Developer45/SDKs/MacOSX10.4u.sdk/usr/include/machine/signal.h
        ....... /Developer45/SDKs/MacOSX10.4u.sdk/usr/include/ppc/signal.h
        ..... /Developer45/SDKs/MacOSX10.4u.sdk/usr/include/sys/resource.h
        ..... /Developer45/SDKs/MacOSX10.4u.sdk/usr/include/machine/endian.h
        ...... /Developer45/SDKs/MacOSX10.4u.sdk/usr/include/ppc/endian.h
        ....... /Developer45/SDKs/MacOSX10.4u.sdk/usr/include/sys/_endian.h
        ........ ./stdint.h
        ......... 
/Developer45/SDKs/MacOSX10.4u.sdk/usr/lib/gcc/powerpc-apple-darwin10/4.0.1/include/stdint.h
        ......... ./sys/types.h
        .......... /Developer45/SDKs/MacOSX10.4u.sdk/usr/include/sys/types.h
        ........... 
/Developer45/SDKs/MacOSX10.4u.sdk/usr/include/machine/types.h
        ............ /Developer45/SDKs/MacOSX10.4u.sdk/usr/include/ppc/types.h
        ........... 
/Developer45/SDKs/MacOSX10.4u.sdk/usr/include/machine/endian.h
        ......... 
/Developer45/SDKs/MacOSX10.4u.sdk/usr/lib/gcc/powerpc-apple-darwin10/4.0.1/include/limits.h
        .......... 
/Developer45/SDKs/MacOSX10.4u.sdk/usr/lib/gcc/powerpc-apple-darwin10/4.0.1/include/syslimits.h
        .......... /Developer45/SDKs/MacOSX10.4u.sdk/usr/include/limits.h
        ........... 
/Developer45/SDKs/MacOSX10.4u.sdk/usr/include/machine/limits.h
        ............ /Developer45/SDKs/MacOSX10.4u.sdk/usr/include/ppc/limits.h
        ............. 
/Developer45/SDKs/MacOSX10.4u.sdk/usr/include/ppc/_limits.h
        ........... 
/Developer45/SDKs/MacOSX10.4u.sdk/usr/include/sys/syslimits.h
        ......... /Developer45/SDKs/MacOSX10.4u.sdk/usr/include/inttypes.h
        .......... ./stdint.h
        ........ 
/Developer45/SDKs/MacOSX10.4u.sdk/usr/include/libkern/OSByteOrder.h
        ......... 
/Developer45/SDKs/MacOSX10.4u.sdk/usr/include/libkern/ppc/OSByteOrder.h
        .... ./sys/types.h
        ... ./alloca.h
        .. 
/Developer45/SDKs/MacOSX10.4u.sdk/usr/lib/gcc/powerpc-apple-darwin10/4.0.1/include/stddef.h
        . ./errno.h
        .. /Developer45/SDKs/MacOSX10.4u.sdk/usr/include/errno.h
        ... /Developer45/SDKs/MacOSX10.4u.sdk/usr/include/sys/errno.h
        . ./string.h
        .. /Developer45/SDKs/MacOSX10.4u.sdk/usr/include/string.h
        .. 
/Developer45/SDKs/MacOSX10.4u.sdk/usr/lib/gcc/powerpc-apple-darwin10/4.0.1/include/stddef.h
        . ./unistd.h
        .. /Developer45/SDKs/MacOSX10.4u.sdk/usr/include/unistd.h
        ... /Developer45/SDKs/MacOSX10.4u.sdk/usr/include/sys/unistd.h
        ... ./sys/select.h
        .... ./sys/types.h
        .... ./sys/time.h
        ..... /Developer45/SDKs/MacOSX10.4u.sdk/usr/include/sys/time.h
        ...... ./time.h
        ....... /Developer45/SDKs/MacOSX10.4u.sdk/usr/include/time.h
        ........ /Developer45/SDKs/MacOSX10.4u.sdk/usr/include/machine/_limits.h
        ....... 
/Developer45/SDKs/MacOSX10.4u.sdk/usr/lib/gcc/powerpc-apple-darwin10/4.0.1/include/stddef.h
        .... /Developer45/SDKs/MacOSX10.4u.sdk/usr/include/sys/select.h
        ..... ./sys/types.h
        ..... ./signal.h
        ...... ./sys/types.h
        ...... /Developer45/SDKs/MacOSX10.4u.sdk/usr/include/signal.h
        .... ./signal.h
        .. 
/Developer45/SDKs/MacOSX10.4u.sdk/usr/lib/gcc/powerpc-apple-darwin10/4.0.1/include/stddef.h
        .. ./stdlib.h
        .. ./sys/types.h
        .. ./getopt.h
        ... /Developer45/SDKs/MacOSX10.4u.sdk/usr/include/getopt.h
        .... ./unistd.h
        ... ../config.h
        ... /Developer45/SDKs/MacOSX10.4u.sdk/usr/include/ctype.h
        .... /Developer45/SDKs/MacOSX10.4u.sdk/usr/include/runetype.h
        .. /Developer45/SDKs/MacOSX10.4u.sdk/usr/include/crt_externs.h
        unsetenv.c: In function 'rpl_unsetenv':
        unsetenv.c:123: error: void value not ignored as it ought to be
        make[4]: *** [unsetenv.lo] Error 1
        make[3]: *** [all] Error 2
        make[2]: *** [all-recursive] Error 1
        make[1]: *** [all] Error 2
        make: *** [all-recursive] Error 1

When I compile unsetenv.c with -E -dD instead of -c I get:

  491   #define GNULIB_TEST_SETENV 1
  536   #define GNULIB_TEST_UNSETENV 1
  714   #define HAVE_DECL_SETENV 1
  742   #define HAVE_DECL_UNSETENV 1
 1296   #define HAVE_RAW_DECL_SETENV 1
 1427   #define HAVE_RAW_DECL_UNSETENV 1
 1571   #define HAVE_SETENV 1
 1752   #define HAVE_UNSETENV 1
 6886   #define GNULIB_TEST_SETENV 1
 6931   #define GNULIB_TEST_UNSETENV 1
 7109   #define HAVE_DECL_SETENV 1
 7137   #define HAVE_DECL_UNSETENV 1
 7691   #define HAVE_RAW_DECL_SETENV 1
 7822   #define HAVE_RAW_DECL_UNSETENV 1
 7966   #define HAVE_SETENV 1
 8147   #define HAVE_UNSETENV 1

 4946   # 143 "/Developer45/SDKs/MacOSX10.4u.sdk/usr/include/stdlib.h" 3 4
...
 5030   int setenv(const char *, const char *, int) ;
...
 5047   void unsetenv(const char *);
 5048   # 260 "/Developer45/SDKs/MacOSX10.4u.sdk/usr/include/stdlib.h" 3 4
...
 5191   # 1113 "./stdlib.h" 3
 5192   #undef setenv
 5193   #define setenv rpl_setenv
 5194   
 5195   extern int rpl_setenv (const char *name, const char *value, int 
replace);
 5196   
 5197   
 5198   extern int _gl_cxxalias_dummy;
 5199   # 1131 "./stdlib.h" 3
 5200   extern int _gl_cxxalias_dummy;
 5201   # 1236 "./stdlib.h" 3
 5202   #undef unsetenv
 5203   #define unsetenv rpl_unsetenv
 5204   
 5205   extern int rpl_unsetenv (const char *name);
...
 8807   # 33 "unsetenv.c" 2
 8808   
 8809   
 8810   #define __environ environ
 8811   # 45 "unsetenv.c"
 8812   #define LOCK 
 8813   #define UNLOCK 
 8814   # 99 "unsetenv.c"
 8815   #undef unsetenv
 8816   # 110 "unsetenv.c"
 8817   int
 8818   rpl_unsetenv (const char *name)
 8819   {
 8820     int result = 0;
 8821     if (!name || !*name || strchr (name, '='))
 8822       {
 8823         (*__error()) = 22;
 8824         return -1;
 8825       }
 8826     while (getenv (name))
 8827   
 8828       result =
 8829   
 8830         unsetenv (name);
 8831     return result;
 8832   }

So obviously in unsetenv.c neither

        extern void unsetenv (const char *);

nor

        extern int unsetenv (const char *);

happens, only

        # undef unsetenv

in the #else part of the #if _LIBC || !HAVE_UNSETENV clause.


--
Greetings

  Pete

Let's face it; we don't want a free market economy either.
                – James Farley, president, Coca-Cola Export Corp., 1959