compiler-errors - gfortran : compile source codes from hierarchically dependent subroutine files

Question

我想编译main.f90，它取决于单独文件中的三个子例程。对于第三个子例程，它还具有三个sub_subroutine。

sub1.f

sub2.f

sub3_main.f sub3_sub1.f sub3_sub2.f sub3_sub3.f

运行以下代码将产生如下所示的长错误消息。
gfortran main.f90 sub1.f sub2.f sub3_main.f sub3_sub1.f sub3_sub2.f sub3_sub3.f -o- test.exe
我搜索后发现，我可能需要标记 -c，但是我不确定编译的顺序以及如何将目标文件链接到独立程序中。或与此问题有关: how to compile multi-folder Fortran Project having interfaces, modules and subroutines。

提前致谢!

test.exe: In function `_fini':
(.fini+0x0): multiple definition of `_fini'
/usr/lib/gcc/i686-linux-gnu/4.6/../../../i386-linux-gnu/crti.o:(.fini+0x0): first defined here
test.exe: In function `__data_start':
(.data+0x0): multiple definition of `__data_start'
/usr/lib/gcc/i686-linux-gnu/4.6/../../../i386-linux-gnu/crt1.o:(.data+0x0): first defined here
test.exe: In function `__data_start':
(.data+0x4): multiple definition of `__dso_handle'
/usr/lib/gcc/i686-linux-gnu/4.6/crtbegin.o:(.data+0x0): first defined here
test.exe:(.rodata+0x4): multiple definition of `_IO_stdin_used'
/usr/lib/gcc/i686-linux-gnu/4.6/../../../i386-linux-gnu/crt1.o:(.rodata.cst4+0x0): first defined here
test.exe: In function `_start':
(.text+0x0): multiple definition of `_start'
/usr/lib/gcc/i686-linux-gnu/4.6/../../../i386-linux-gnu/crt1.o:(.text+0x0): first defined here
test.exe:(.rodata+0x0): multiple definition of `_fp_hw'
/usr/lib/gcc/i686-linux-gnu/4.6/../../../i386-linux-gnu/crt1.o:(.rodata+0x0): first defined here
test.exe: In function `main':
(.text+0x399): multiple definition of `main'
/tmp/ccwQ3UVQ.o:main.f90:(.text+0x20ee): first defined here
test.exe: In function `_init':
(.init+0x0): multiple definition of `_init'
/usr/lib/gcc/i686-linux-gnu/4.6/../../../i386-linux-gnu/crti.o:(.init+0x0): first defined here
/usr/lib/gcc/i686-linux-gnu/4.6/crtend.o:(.dtors+0x0): multiple definition of `__DTOR_END__'
test.exe:(.dtors+0x4): first defined here
/usr/bin/ld: error in test.exe(.eh_frame); no .eh_frame_hdr table will be created.
collect2: ld returned 1 exit status

Answer 1

您应该能够执行以下任一操作:

gfortran -c sub1.f
gfortran -c sub2.f
gfortran -c sub3_main.f sub3_sub1.f sub3_sub2.f sub3_sub3.f
gfortran sub1.o sub2.o sub3_main.o sub3_sub1.o sub3_sub2.o sub3_sub3.o  main.f90 -o text.exe

要么

gfortran sub1.f sub2.f sub3_main.f sub3_sub1.f sub3_sub2.f sub3_sub3.f main.f90 -o text.exe

您应该只有一个程序和任意数量的处理程序(子例程和函数)。上面假设sub3_main是一个过程，并且您的程序位于main.f90中。