[PATCH] Add fpicflags for Intel(R) Fortran Compiler (PR#8344)
1) The documented way to specify this is to set FPICFLAGS in config.site: see the example in R-admin for the PG compilers. When you tried that, what went wrong? 2) It seems strange to specify this for the Fortran compiler and not the C or C++ compiler. 3) You have suggested the change to a section for all OSes. Do you know for sure that all compilers called 'ifort' on all OSes need the -fPIC flag? Or is it really just for Linux (and AFAICS, just x86_64 Linux, as i386 Linux seems to work with icc/ifort without it).
On Tue, 22 Nov 2005 kugelfang at gentoo.org wrote:
Full_Name: Danny van Dyk
Version: R-2.2.0
OS: Gentoo/AMD64
Submission from: (NULL) (83.129.50.65)
I have successfully compiled R-2.2.0 using ifc-9.0.026 on my x86_64 box.
The only (minor) change that hade to be made was adding fpicflags="-fPIC" to
configure.ac in case F77 matches either "ifc" (old name) or "ifort" (new name).
Please apply following patch:
dvandyk at phi trunk $ svn diff
Index: configure.ac
===================================================================
--- configure.ac (revision 36420)
+++ configure.ac (working copy)
@@ -942,7 +942,7 @@
rm -f Imakefile Makefile
fi
-## Step 2. GNU compilers.
+## Step 2. GNU and Intel compilers.
if test "${GCC}" = yes; then
cpicflags="-fPIC"
shlib_ldflags="-shared"
@@ -954,6 +954,11 @@
cxxpicflags="-fPIC"
shlib_cxxldflags="-shared"
fi
+case "${F77}" in
+ ifc|ifort)
+ fpicflags="-fPIC"
+ ;;
+esac
## Step 3. Individual platform overrides.
case "${host_os}" in
===================================================================
Danny
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