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add documention comments for shared Fortran Fix on OSX

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M. Scot Breitenfeld 2017-05-23 09:53:59 -05:00
parent 6301d5a6cb
commit 69ccaee00a
1 changed files with 7 additions and 5 deletions
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12
configure.ac
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@ -918,12 +918,13 @@ H5_FORTRAN_SHARED="no"
if test "X${HDF_FORTRAN}" = "Xyes" && test "X${enable_shared}" != "Xno"; then
AC_MSG_CHECKING([if shared Fortran libraries are supported])
H5_FORTRAN_SHARED="yes"
## tell libtool to do the right thing with COMMON symbols
## tell libtool to do the right thing with COMMON symbols, this fixes
## corrupt values with COMMON and EQUIVALENCE when building shared
## Fortran libraries on OSX with gnu and Intel compilers (HDFFV-2772).
case "`uname`" in
Darwin*)
H5_LDFLAGS="$H5_LDFLAGS -Wl,-commons,use_dylibs"
;;
;;
esac
## Report results of check(s)
@ -3482,8 +3483,9 @@ chmod 755 tools/src/misc/h5cc
if test "X$HDF_FORTRAN" = "Xyes"; then
chmod 755 fortran/src/h5fc
## tell libtool to pass the correct argument linker, needed only for intel compiler. This script
## replaces the 3rd occurance, which is for Fortran, of wl="" with wl="-Wl,"
## libtool does not pass the correct argument linker (wl=) for the Intel Fortran compiler
## on OS X, which is needed when building shared libraries on OS X. This script
## replaces the 3rd occurrence, which is for Fortran, of wl="" with wl="-Wl," (HDFFV-2772)
case "`uname`" in
Darwin*)
cat libtool | awk '/wl=\"/{c++;if(c==3){sub("wl=\"\"","wl=\"-Wl,\"");c=0}}1' > libtool.tmp && mv -f libtool.tmp libtool && chmod 755 libtool