[Bug fortran/97692] GNU Fortran is not working

["nju044 at hotmail dot com" <gcc-bugzilla@gcc.gnu.org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97692

--- Comment #4 from ninos <nju044 at hotmail dot com> ---
(In reply to Jakub Jelinek from comment #2)
> aarch64-xilinx-linux-gfortran: command not found
> seems like user error.


I grep "command not found" and find more suspectible items, especially item
"19":
    ac_cv_fc_compiler_gnu=no
    ac_cv_func_dlopen=no
    ac_cv_func_shl_load=no
    ac_cv_header_minix_config_h=no 
    ac_cv_lib_dld_shl_load=no
    ac_cv_prog_fc_g=no
    lt_cv_archive_cmds_need_lc=no
    lt_cv_prog_compiler_c_o_FC=no
    lt_cv_prog_compiler_rtti_exceptions=no
    lt_cv_prog_compiler_static_works_FC=no
    lt_cv_shlibpath_overrides_runpath=no
    enable_static='no'

I googled "ac_cv_fc_compiler_gnu", think it means GNU Fortran Compiler. If
true, the fortran compiler is not enabled?

For detailed suspectible items, see below (grep from "gfortran config log"): 

1. --enable-version-specific-runtime-libs is no

2. "enable maintainer-specific portions of Makefiles" is no

3. aarch64-xilinx-linux-gcc  -march=armv8-a+crc -mtune=cortex-a72.cortex-a53
-fstack-protector-strong  -D_FORTIFY_SOURCE=2 -Wformat -Wformat-security
-Werror=format-security
--sysroot=/home/base/zynqmp/build/tmp/work/aarch64-xilinx-linux/libgfortran/9.2.0-r0/recipe-sysroot
-V >&5
   aarch64-xilinx-linux-gcc: error: unrecognized command line option '-V'
   aarch64-xilinx-linux-gcc: fatal error: no input files

4. aarch64-xilinx-linux-gcc  -march=armv8-a+crc -mtune=cortex-a72.cortex-a53
-fstack-protector-strong  -D_FORTIFY_SOURCE=2 -Wformat -Wformat-security
-Werror=format-security
--sysroot=/home/base/zynqmp/build/tmp/work/aarch64-xilinx-linux/libgfortran/9.2.0-r0/recipe-sysroot
-qversion >&5
   aarch64-xilinx-linux-gcc: error: unrecognized command line option
'-qversion'; did you mean '--version'?
   aarch64-xilinx-linux-gcc: fatal error: no input files

5. aarch64-xilinx-linux-gcc -E
--sysroot=/home/base/zynqmp/build/tmp/work/aarch64-xilinx-linux/libgfortran/9.2.0-r0/recipe-sysroot
 -march=armv8-a+crc -mtune=cortex-a72.cortex-a53 -fstack-protector-strong 
-D_FORTIFY_SOURCE=2 -Wformat -Wformat-security -Werror=format-security 
conftest.c
   conftest.c:9:10: fatal error: ac_nonexistent.h: No such file or directory
       9 | #include <ac_nonexistent.h>

6. aarch64-xilinx-linux-gcc  -march=armv8-a+crc -mtune=cortex-a72.cortex-a53
-fstack-protector-strong  -D_FORTIFY_SOURCE=2 -Wformat -Wformat-security
-Werror=format-security
--sysroot=/home/base/zynqmp/build/tmp/work/aarch64-xilinx-linux/libgfortran/9.2.0-r0/recipe-sysroot
-c  -O2 -pipe -g -feliminate-unused-debug-types
-fmacro-prefix-map=/home/base/zynqmp/build/tmp/work/aarch64-xilinx-linux/libgfortran/9.2.0-r0=/usr/src/debug/libgfortran/9.2.0-r0
                    
-fdebug-prefix-map=/home/base/zynqmp/build/tmp/work/aarch64-xilinx-linux/libgfortran/9.2.0-r0=/usr/src/debug/libgfortran/9.2.0-r0
                    
-fdebug-prefix-map=/home/base/zynqmp/build/tmp/work/aarch64-xilinx-linux/libgfortran/9.2.0-r0/recipe-sysroot=
                    
-fdebug-prefix-map=/home/base/zynqmp/build/tmp/work/aarch64-xilinx-linux/libgfortran/9.2.0-r0/recipe-sysroot-native=
  conftest.c >&5
   conftest.c:52:10: fatal error: minix/config.h: No such file or directory
      52 | #include <minix/config.h>
failed program was:
| /* confdefs.h */
| #define PACKAGE_NAME "GNU Fortran Runtime Library"
| #define PACKAGE_TARNAME "libgfortran"
| #define PACKAGE_VERSION "0.3"
| #define PACKAGE_STRING "GNU Fortran Runtime Library 0.3"
| #define PACKAGE_BUGREPORT ""
| #define PACKAGE_URL "http://www.gnu.org/software/libgfortran/"
| #define STDC_HEADERS 1
| #define HAVE_SYS_TYPES_H 1
| #define HAVE_SYS_STAT_H 1
| #define HAVE_STDLIB_H 1
| #define HAVE_STRING_H 1
| #define HAVE_MEMORY_H 1
| #define HAVE_STRINGS_H 1
| #define HAVE_INTTYPES_H 1
| #define HAVE_STDINT_H 1
| #define HAVE_UNISTD_H 1
| /* end confdefs.h.  */
| #include <stdio.h>
| #ifdef HAVE_SYS_TYPES_H
| # include <sys/types.h>
| #endif
| #ifdef HAVE_SYS_STAT_H
| # include <sys/stat.h>
| #endif
| #ifdef STDC_HEADERS
| # include <stdlib.h>
| # include <stddef.h>
| #else
| # ifdef HAVE_STDLIB_H
| #  include <stdlib.h>
| # endif
| #endif
| #ifdef HAVE_STRING_H
| # if !defined STDC_HEADERS && defined HAVE_MEMORY_H
| #  include <memory.h>
| # endif
| # include <string.h>
| #endif
| #ifdef HAVE_STRINGS_H
| # include <strings.h>
| #endif
| #ifdef HAVE_INTTYPES_H
| # include <inttypes.h>
| #endif
| #ifdef HAVE_STDINT_H
| # include <stdint.h>
| #endif
| #ifdef HAVE_UNISTD_H
| # include <unistd.h>
| #endif
| #include <minix/config.h>

7. aarch64-xilinx-linux-gcc -E
--sysroot=/home/base/zynqmp/build/tmp/work/aarch64-xilinx-linux/libgfortran/9.2.0-r0/recipe-sysroot
 -march=armv8-a+crc -mtune=cortex-a72.cortex-a53 -fstack-protector-strong 
-D_FORTIFY_SOURCE=2 -Wformat -Wformat-security -Werror=format-security 
conftest.c
   conftest.c:19:10: fatal error: minix/config.h: No such file or directory
      19 | #include <minix/config.h>
failed program was:
| /* confdefs.h */
| #define PACKAGE_NAME "GNU Fortran Runtime Library"
| #define PACKAGE_TARNAME "libgfortran"
| #define PACKAGE_VERSION "0.3"
| #define PACKAGE_STRING "GNU Fortran Runtime Library 0.3"
| #define PACKAGE_BUGREPORT ""
| #define PACKAGE_URL "http://www.gnu.org/software/libgfortran/"
| #define STDC_HEADERS 1
| #define HAVE_SYS_TYPES_H 1
| #define HAVE_SYS_STAT_H 1
| #define HAVE_STDLIB_H 1
| #define HAVE_STRING_H 1
| #define HAVE_MEMORY_H 1
| #define HAVE_STRINGS_H 1
| #define HAVE_INTTYPES_H 1
| #define HAVE_STDINT_H 1
| #define HAVE_UNISTD_H 1
| /* end confdefs.h.  */
| #include <minix/config.h>

8. aarch64-xilinx-linux-gcc  -march=armv8-a+crc -mtune=cortex-a72.cortex-a53
-fstack-protector-strong  -D_FORTIFY_SOURCE=2 -Wformat -Wformat-security
-Werror=format-security
--sysroot=/home/base/zynqmp/build/tmp/work/aarch64-xilinx-linux/libgfortran/9.2.0-r0/recipe-sysroot
-V >&5
   aarch64-xilinx-linux-gcc: error: unrecognized command line option '-V'
   aarch64-xilinx-linux-gcc: fatal error: no input files

9. aarch64-xilinx-linux-gcc  -march=armv8-a+crc -mtune=cortex-a72.cortex-a53
-fstack-protector-strong  -D_FORTIFY_SOURCE=2 -Wformat -Wformat-security
-Werror=format-security
--sysroot=/home/base/zynqmp/build/tmp/work/aarch64-xilinx-linux/libgfortran/9.2.0-r0/recipe-sysroot
-qversion >&5
   aarch64-xilinx-linux-gcc: error: unrecognized command line option
'-qversion'; did you mean '--version'?
   aarch64-xilinx-linux-gcc: fatal error: no input files

10. "CET support" is no

11. aarch64-xilinx-linux-gcc  -march=armv8-a+crc -mtune=cortex-a72.cortex-a53
-fstack-protector-strong  -D_FORTIFY_SOURCE=2 -Wformat -Wformat-security
-Werror=format-security
--sysroot=/home/base/zynqmp/build/tmp/work/aarch64-xilinx-linux/libgfortran/9.2.0-r0/recipe-sysroot
-o conftest -std=gnu11  -O2 -pipe -g -feliminate-unused-debug-types
-fmacro-prefix-map=/home/base/zynqmp/build/tmp/work/aarch64-xilinx-linux/libgfortran/9.2.0-r0=/usr/src/debug/libgfortran/9.2.0-r0
                    
-fdebug-prefix-map=/home/base/zynqmp/build/tmp/work/aarch64-xilinx-linux/libgfortran/9.2.0-r0=/usr/src/debug/libgfortran/9.2.0-r0
                    
-fdebug-prefix-map=/home/base/zynqmp/build/tmp/work/aarch64-xilinx-linux/libgfortran/9.2.0-r0/recipe-sysroot=
                    
-fdebug-prefix-map=/home/base/zynqmp/build/tmp/work/aarch64-xilinx-linux/libgfortran/9.2.0-r0/recipe-sysroot-native=
    -mclear-hwcap conftest.c  >&5
   aarch64-xilinx-linux-gcc: error: unrecognized command line option
'-mclear-hwcap'
failed program was:
| /* confdefs.h */
| #define PACKAGE_NAME "GNU Fortran Runtime Library"
| #define PACKAGE_TARNAME "libgfortran"
| #define PACKAGE_VERSION "0.3"
| #define PACKAGE_STRING "GNU Fortran Runtime Library 0.3"
| #define PACKAGE_BUGREPORT ""
| #define PACKAGE_URL "http://www.gnu.org/software/libgfortran/"
| #define STDC_HEADERS 1
| #define HAVE_SYS_TYPES_H 1
| #define HAVE_SYS_STAT_H 1
| #define HAVE_STDLIB_H 1
| #define HAVE_STRING_H 1
| #define HAVE_MEMORY_H 1
| #define HAVE_STRINGS_H 1
| #define HAVE_INTTYPES_H 1
| #define HAVE_STDINT_H 1
| #define HAVE_UNISTD_H 1
| #define __EXTENSIONS__ 1
| #define _ALL_SOURCE 1
| #define _GNU_SOURCE 1
| #define _POSIX_PTHREAD_SEMANTICS 1
| #define _TANDEM_SOURCE 1
| /* end confdefs.h.  */
| 
| int
| main ()
| {
| return 0;
|   ;
|   return 0;
| }

12.
/home/base/zynqmp/build/tmp/work/aarch64-xilinx-linux/libgfortran/9.2.0-r0/recipe-sysroot-native/usr/bin/aarch64-xilinx-linux/../../libexec/aarch64-xilinx-linux/gcc/aarch64-xilinx-linux/9.2.0/ld:
/tmp/ccvyGu7H.o: in function `main':
  
/usr/src/debug/libgfortran/9.2.0-r0/gcc-9.2.0/build.aarch64-xilinx-linux.aarch64-xilinx-linux/aarch64-xilinx-linux/libgfortran/conftest.c:60:
undefined reference to `shl_load'
   collect2: error: ld returned 1 exit status
failed program was:
| /* confdefs.h */
| #define PACKAGE_NAME "GNU Fortran Runtime Library"
| #define PACKAGE_TARNAME "libgfortran"
| #define PACKAGE_VERSION "0.3"
| #define PACKAGE_STRING "GNU Fortran Runtime Library 0.3"
| #define PACKAGE_BUGREPORT ""
| #define PACKAGE_URL "http://www.gnu.org/software/libgfortran/"
| #define STDC_HEADERS 1
| #define HAVE_SYS_TYPES_H 1
| #define HAVE_SYS_STAT_H 1
| #define HAVE_STDLIB_H 1
| #define HAVE_STRING_H 1
| #define HAVE_MEMORY_H 1
| #define HAVE_STRINGS_H 1
| #define HAVE_INTTYPES_H 1
| #define HAVE_STDINT_H 1
| #define HAVE_UNISTD_H 1
| #define __EXTENSIONS__ 1
| #define _ALL_SOURCE 1
| #define _GNU_SOURCE 1
| #define _POSIX_PTHREAD_SEMANTICS 1
| #define _TANDEM_SOURCE 1
| #define HAVE_DLFCN_H 1
| #define LT_OBJDIR ".libs/"
| /* end confdefs.h.  */
| /* Define shl_load to an innocuous variant, in case <limits.h> declares
shl_load.
|    For example, HP-UX 11i <limits.h> declares gettimeofday.  */
| #define shl_load innocuous_shl_load
| 
| /* System header to define __stub macros and hopefully few prototypes,
|     which can conflict with char shl_load (); below.
|     Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
|     <limits.h> exists even on freestanding compilers.  */
| 
| #ifdef __STDC__
| # include <limits.h>
| #else
| # include <assert.h>
| #endif
| 
| #undef shl_load
| 
| /* Override any GCC internal prototype to avoid an error.
|    Use char because int might match the return type of a GCC
|    builtin and then its argument prototype would still apply.  */
| #ifdef __cplusplus
| extern "C"
| #endif
| char shl_load ();
| /* The GNU C library defines this for functions which it implements
|     to always fail with ENOSYS.  Some functions are actually named
|     something starting with __ and the normal name is an alias.  */
| #if defined __stub_shl_load || defined __stub___shl_load
| choke me
| #endif
| 
| int
| main ()
| {
| return shl_load ();
|   ;
|   return 0;
| }

13.
/home/base/zynqmp/build/tmp/work/aarch64-xilinx-linux/libgfortran/9.2.0-r0/recipe-sysroot-native/usr/bin/aarch64-xilinx-linux/../../libexec/aarch64-xilinx-linux/gcc/aarch64-xilinx-linux/9.2.0/ld:
cannot find -ldld
   collect2: error: ld returned 1 exit status
failed program was:
| /* confdefs.h */
| #define PACKAGE_NAME "GNU Fortran Runtime Library"
| #define PACKAGE_TARNAME "libgfortran"
| #define PACKAGE_VERSION "0.3"
| #define PACKAGE_STRING "GNU Fortran Runtime Library 0.3"
| #define PACKAGE_BUGREPORT ""
| #define PACKAGE_URL "http://www.gnu.org/software/libgfortran/"
| #define STDC_HEADERS 1
| #define HAVE_SYS_TYPES_H 1
| #define HAVE_SYS_STAT_H 1
| #define HAVE_STDLIB_H 1
| #define HAVE_STRING_H 1
| #define HAVE_MEMORY_H 1
| #define HAVE_STRINGS_H 1
| #define HAVE_INTTYPES_H 1
| #define HAVE_STDINT_H 1
| #define HAVE_UNISTD_H 1
| #define __EXTENSIONS__ 1
| #define _ALL_SOURCE 1
| #define _GNU_SOURCE 1
| #define _POSIX_PTHREAD_SEMANTICS 1
| #define _TANDEM_SOURCE 1
| #define HAVE_DLFCN_H 1
| #define LT_OBJDIR ".libs/"
| /* end confdefs.h.  */
| 
| /* Override any GCC internal prototype to avoid an error.
|    Use char because int might match the return type of a GCC
|    builtin and then its argument prototype would still apply.  */
| #ifdef __cplusplus
| extern "C"
| #endif
| char shl_load ();
| int
| main ()
| {
| return shl_load ();
|   ;
|   return 0;
| }

14.
/home/base/zynqmp/build/tmp/work/aarch64-xilinx-linux/libgfortran/9.2.0-r0/recipe-sysroot-native/usr/bin/aarch64-xilinx-linux/../../libexec/aarch64-xilinx-linux/gcc/aarch64-xilinx-linux/9.2.0/ld:
/tmp/ccTAVrwg.o: in function `main':
  
/usr/src/debug/libgfortran/9.2.0-r0/gcc-9.2.0/build.aarch64-xilinx-linux.aarch64-xilinx-linux/aarch64-xilinx-linux/libgfortran/conftest.c:60:
undefined reference to `dlopen'
   collect2: error: ld returned 1 exit status
failed program was:
| /* confdefs.h */
| #define PACKAGE_NAME "GNU Fortran Runtime Library"
| #define PACKAGE_TARNAME "libgfortran"
| #define PACKAGE_VERSION "0.3"
| #define PACKAGE_STRING "GNU Fortran Runtime Library 0.3"
| #define PACKAGE_BUGREPORT ""
| #define PACKAGE_URL "http://www.gnu.org/software/libgfortran/"
| #define STDC_HEADERS 1
| #define HAVE_SYS_TYPES_H 1
| #define HAVE_SYS_STAT_H 1
| #define HAVE_STDLIB_H 1
| #define HAVE_STRING_H 1
| #define HAVE_MEMORY_H 1
| #define HAVE_STRINGS_H 1
| #define HAVE_INTTYPES_H 1
| #define HAVE_STDINT_H 1
| #define HAVE_UNISTD_H 1
| #define __EXTENSIONS__ 1
| #define _ALL_SOURCE 1
| #define _GNU_SOURCE 1
| #define _POSIX_PTHREAD_SEMANTICS 1
| #define _TANDEM_SOURCE 1
| #define HAVE_DLFCN_H 1
| #define LT_OBJDIR ".libs/"
| /* end confdefs.h.  */
| /* Define dlopen to an innocuous variant, in case <limits.h> declares dlopen.
|    For example, HP-UX 11i <limits.h> declares gettimeofday.  */
| #define dlopen innocuous_dlopen
| 
| /* System header to define __stub macros and hopefully few prototypes,
|     which can conflict with char dlopen (); below.
|     Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
|     <limits.h> exists even on freestanding compilers.  */
| 
| #ifdef __STDC__
| # include <limits.h>
| #else
| # include <assert.h>
| #endif
| 
| #undef dlopen
| 
| /* Override any GCC internal prototype to avoid an error.
|    Use char because int might match the return type of a GCC
|    builtin and then its argument prototype would still apply.  */
| #ifdef __cplusplus
| extern "C"
| #endif
| char dlopen ();
| /* The GNU C library defines this for functions which it implements
|     to always fail with ENOSYS.  Some functions are actually named
|     something starting with __ and the normal name is an alias.  */
| #if defined __stub_dlopen || defined __stub___dlopen
| choke me
| #endif
| 
| int
| main ()
| {
| return dlopen ();
|   ;
|   return 0;
| }

16. "build static libraries" is no

17. checking whether we are using the GNU Fortran compiler
configure:13223: aarch64-xilinx-linux-gfortran  -march=armv8-a+crc
-mtune=cortex-a72.cortex-a53 -fstack-protector-strong  -D_FORTIFY_SOURCE=2
-Wformat -Wformat-security -Werror=format-security
--sysroot=/home/base/zynqmp/build/tmp/work/aarch64-xilinx-linux/libgfortran/9.2.0-r0/recipe-sysroot
-c   conftest.F >&5
  
../../../../../../../../work-shared/gcc-9.2.0-r0/gcc-9.2.0/libgfortran/configure:
line 1960: aarch64-xilinx-linux-gfortran: command not found
failed program was:
|       program main
| #ifndef __GNUC__
|        choke me
| #endif
| 
|       end

18. configure:13249: aarch64-xilinx-linux-gfortran  -march=armv8-a+crc
-mtune=cortex-a72.cortex-a53 -fstack-protector-strong  -D_FORTIFY_SOURCE=2
-Wformat -Wformat-security -Werror=format-security
--sysroot=/home/base/zynqmp/build/tmp/work/aarch64-xilinx-linux/libgfortran/9.2.0-r0/recipe-sysroot
-c -g  conftest.f >&5
  
../../../../../../../../work-shared/gcc-9.2.0-r0/gcc-9.2.0/libgfortran/configure:
line 1960: aarch64-xilinx-linux-gfortran: command not found
failed program was:
|       program main
| 
|       end

19. ac_cv_fc_compiler_gnu=no
    ac_cv_func_dlopen=no
    ac_cv_func_shl_load=no
    ac_cv_header_minix_config_h=no 
    ac_cv_lib_dld_shl_load=no
    ac_cv_prog_fc_g=no
    lt_cv_archive_cmds_need_lc=no
    lt_cv_prog_compiler_c_o_FC=no
    lt_cv_prog_compiler_rtti_exceptions=no
    lt_cv_prog_compiler_static_works_FC=no
    lt_cv_shlibpath_overrides_runpath=no
    enable_static='no'