427682 – dev-cpp/eigen - CMake Error at /usr/share/cmake/Modules/CMakeTestFortranCompiler.cmake:40 (MESSAGE): The Fortran compiler "/usr/bin/gfortran" is not able to compile a simple test program.

Bug 427682 - dev-cpp/eigen - CMake Error at /usr/share/cmake/Modules/CMakeTestFortranCompiler.cmake:40 (MESSAGE): The Fortran compiler "/usr/bin/gfortran" is not able to compile a simple test program.

Summary: dev-cpp/eigen - CMake Error at /usr/share/cmake/Modules/CMakeTestFortranCompi...

Status:	RESOLVED FIXED

Alias:	None

Product:	Gentoo Linux
Classification:	Unclassified
Component:	New packages (show other bugs)
Hardware:	All Linux

Importance:	Normal normal (vote)
Assignee:	Gentoo Science Related Packages

URL:
Whiteboard:
Keywords:	PATCH

Depends on:
Blocks:

Reported:	2012-07-23 00:06 UTC by jc
Modified:	2012-07-26 14:04 UTC (History)
CC List:	2 users (show)

See Also:
Package list:
Runtime testing required:	---

Attachments
build.log of eigen (build.log,5.61 KB, text/plain) 2012-07-23 00:08 UTC, jc	Details
environment of eigen (environment,94.48 KB, text/plain) 2012-07-23 00:08 UTC, jc	Details
Add virtual/fortran into DEPEND (file_427682.txt,341 bytes, text/plain) 2012-07-23 00:42 UTC, jc	Details
View All Add an attachment (proposed patch, testcase, etc.)

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Description jc 2012-07-23 00:06:52 UTC

When building eigen, I get:

 ....
  gcc-config: error: could not run/locate 'gfortran'
....

As confirmed by running 'gfortran'. it also gives:
gcc-config: error: could not run/locate 'gfortran'
.

I have gcc without fortran use flag installed. If eigen needs it, it should be probabaly listed as a build time dependency.

Comment 1 jc 2012-07-23 00:08:09 UTC

Created attachment 318942 [details]
build.log of eigen

Comment 2 jc 2012-07-23 00:08:26 UTC

Created attachment 318944 [details]
environment of eigen

Comment 3 jc 2012-07-23 00:18:42 UTC

I apologize for setting a wrong title, apparently it's not as easy as it seems with fortran. Maybe it should DEPEND on virtual/fortran.

Comment 4 jc 2012-07-23 00:42:44 UTC

Created attachment 318946 [details]
Add virtual/fortran into DEPEND

Fix proposal. This on my system prompts:

Calculating dependencies... done!
[ebuild   R    ] sys-devel/gcc-4.6.3  USE="fortran*" 
[ebuild  N     ] virtual/fortran-0  USE="openmp" 
[ebuild  NS    ] dev-cpp/eigen-3.0.5 [2.0.17] USE="-debug -doc" 

Which makes it compile properly.

Comment 5 Michael Palimaka (kensington) gentoo-dev

2012-07-26 14:04:54 UTC

Thank-you for the report. This should now be fixed in CVS, but please re-open if you have further issues.

+  26 Jul 2012; Michael Palimaka <kensington@gentoo.org> +eigen-3.0.6.ebuild,
+  -eigen-3.0.2.ebuild:
+  Version bump, remove old. Migrate to EAPI 4, drop useless debug use flag,
+  build tests correctly. Fixes bug #427682.