gfortran -static on MACs

[Manfred Schwarb]

Am 10.02.2018 um 14:40 schrieb Sewell, Granville:
> 
> The Linux and Windows versions of Gfortran work with
> 
>   gfortran -static  -o prog.exe prog.f
> 
> to produce an executable that can be run on other systems where gfortran is not installed.
> 
> But the -static option does not seem to work with gfortran on a MAC, I get
>    ld: library not found for -lcrt0.o
> and another person with a different version of gfortran on his MAC gets the same results.
> 
>  gfortran -static-libgfortran prog.f
> 
> works, but the executable does not even seem to run on other systems with a different version of gfortran.
> 

probably the following patch will help somewhat. You have to patch all files named
"libgfortran.spec" in the path of your _installed_ compiler. With this change
"-static-libgfortran" will imply static linking to libquadmath.

--- libgfortran.spec.old        2017-05-29 21:46:01.036867084 +0000
+++ libgfortran.spec    2017-08-08 12:04:01.500558409 +0000
@@ -5,4 +5,4 @@
 #

 %rename lib liborig
-*lib: %{static-libgfortran:--as-needed} -lquadmath %{static-libgfortran:--no-as-needed} -lm %(libgcc) %(liborig)
+*lib: %{static-libgfortran:-Bstatic} -lquadmath %{static-libgfortran:-Bdynamic} -lm %(libgcc) %(liborig)


HTH,
Manfred


> So it seems to be impossible to produce any executable with gfortran  on a MAC that has the dynamic libraries loaded
> so it can run elsewhere.
> 
> Is there a way to get -static to work on MACs, or any other way to produce a portable executable?
> 
> Thanks for your help
> 
> Granville Sewell
>