http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47260
Summary: DLLEXPORT attribute requires additional capabilities
to be useful
Product: gcc
Version: 4.6.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: fortran
AssignedTo: unassig...@gcc.gnu.org
ReportedBy: craig.pow...@gmail.com
With the following mingw gfortran package:
Using built-in specs.
COLLECT_GCC=gfortran
COLLECT_LTO_WRAPPER=c:/program
files/gfortran/bin/../libexec/gcc/i586-pc-mingw32
/4.6.0/lto-wrapper.exe
Target: i586-pc-mingw32
Configured with: ../gcc-trunk/configure --prefix=/mingw
--enable-languages=c,for
tran --with-gmp=/home/brad/gfortran/dependencies --disable-werror
--enable-threa
ds --disable-nls --build=i586-pc-mingw32 --enable-libgomp --disable-shared
--dis
able-win32-registry --with-dwarf2 --disable-sjlj-exceptions --enable-lto
Thread model: win32
gcc version 4.6.0 20101201 (experimental) [trunk revision 167359] (GCC)
If I build a standalone function declared as:
INTEGER FUNCTION test()
!GCC$ ATTRIBUTES STDCALL, DLLEXPORT :: test
test = 1
END FUNCTION test
and build it with:
gfortran -std=f2008 -march=native -c bug.f90
The result is:
bug.f90:1:0: error: external linkage required for symbol 'test' because of
'dlle
xport' attribute
I believe that either something is not being set correctly for symbol 'test',
or an additional attribute needs to be made available so that 'test' can be
marked correctly. In the absence of this, the manual should clearly state that
dllexport cannot be applied to procedures in Windows.
