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ENH: add support for g77 extra _ at the end of functions that have an _ in the name...

This commit is contained in:
Bill Hoffman 2008-10-28 19:53:54 -04:00
parent 58d8310c14
commit 3155ff600d
1 changed files with 35 additions and 9 deletions
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42
Modules/FortranCInterface.cmake
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@ -27,15 +27,17 @@
# POSTFIX - string to put after sub
# ISUPPER - if TRUE then sub will be called as SUB
# DOC - string used in status checking Fortran ${DOC} linkage
# SUB - the name of the SUB to call
# RESULT place to store result TRUE if this linkage works, FALSE
# if not.
#
function(test_fortran_mangling CODE PREFIX ISUPPER POSTFIX DOC RESULT)
function(test_fortran_mangling CODE PREFIX ISUPPER POSTFIX DOC SUB RESULT)
if(ISUPPER)
set(FUNCTION "${PREFIX}SUB${POSTFIX}")
string(TOUPPER "${SUB}" sub)
else(ISUPPER)
set(FUNCTION "${PREFIX}sub${POSTFIX}")
string(TOLOWER "${SUB}" sub)
endif(ISUPPER)
set(FUNCTION "${PREFIX}${sub}${POSTFIX}")
# create a fortran file with sub called sub
#
set(TMP_DIR
@ -88,7 +90,7 @@ function(discover_fortran_module_mangling prefix suffix found)
".__test_interface_NMOD_"
"__test_interface_MOD_")
test_fortran_mangling("${CODE}" "${interface}"
${FORTRAN_C_MANGLING_UPPERCASE} "" "module" worked)
${FORTRAN_C_MANGLING_UPPERCASE} "" "module" "sub" worked)
if(worked)
string(REGEX REPLACE "(.*)test_interface(.*)" "\\1" pre "${interface}")
string(REGEX REPLACE "(.*)test_interface(.*)" "\\2" post "${interface}")
@ -101,7 +103,8 @@ function(discover_fortran_module_mangling prefix suffix found)
endfunction(discover_fortran_module_mangling)
function(discover_fortran_mangling prefix isupper suffix found )
function(discover_fortran_mangling prefix isupper suffix extra_under_score
found )
set(CODE
"
subroutine sub
@ -111,14 +114,32 @@ function(discover_fortran_mangling prefix isupper suffix found )
foreach(isup TRUE FALSE)
foreach(post "" "_")
set(worked FALSE)
test_fortran_mangling("${CODE}" "${pre}" ${isup} "${post}" "function" worked )
test_fortran_mangling("${CODE}" "${pre}" ${isup}
"${post}" "function" sub worked )
if(worked)
message(STATUS "found Fortran function linkage")
set(${isupper} "${isup}" PARENT_SCOPE)
set(${prefix} "${pre}" PARENT_SCOPE)
set(${suffix} "${post}" PARENT_SCOPE)
set(${found} TRUE PARENT_SCOPE)
return()
set(CODE
"
subroutine my_sub
end subroutine my_sub
")
set(worked FALSE)
test_fortran_mangling("${CODE}" "${pre}" ${isup}
"${post}" "function with _ " my_sub worked )
if(worked)
set(${extra_under_score} FALSE PARENT_SCOPE)
else(worked)
test_fortran_mangling("${CODE}" "${pre}" ${isup}
"${post}_" "function with _ " my_sub worked )
if(worked)
set(${extra_under_score} TRUE PARENT_SCOPE)
endif(worked)
endif(worked)
return()
endif()
endforeach()
endforeach()
@ -129,7 +150,7 @@ endfunction(discover_fortran_mangling)
function(create_fortran_c_interface NAMESPACE FUNCTIONS HEADER)
if(NOT FORTRAN_C_MANGLING_FOUND)
# find regular fortran function mangling
discover_fortran_mangling(prefix isupper suffix found)
discover_fortran_mangling(prefix isupper suffix extra_under found)
if(NOT found)
message(SEND_ERROR "Could not find fortran c name mangling.")
return()
@ -141,6 +162,8 @@ function(create_fortran_c_interface NAMESPACE FUNCTIONS HEADER)
"SUFFIX for Fortran to c name mangling")
set(FORTRAN_C_MANGLING_UPPERCASE ${isupper} CACHE INTERNAL
"Was fortran to c mangling found" )
set(FORTRAN_C_MANGLING_EXTRA_UNDERSCORE ${extra_under} CACHE INTERNAL
"If a function has a _ in the name does the compiler append an extra _" )
set(FORTRAN_C_MANGLING_FOUND TRUE CACHE INTERNAL
"Was fortran to c mangling found" )
set(prefix )
@ -174,6 +197,9 @@ function(create_fortran_c_interface NAMESPACE FUNCTIONS HEADER)
")
else("${f}" MATCHES ":")
set(function "${FORTRAN_C_PREFIX}${ff}${FORTRAN_C_SUFFIX}")
if("${f}" MATCHES "_" AND FORTRAN_C_MANGLING_EXTRA_UNDERSCORE)
set(function "${function}_")
endif("${f}" MATCHES "_" AND FORTRAN_C_MANGLING_EXTRA_UNDERSCORE)
set(HEADER_CONTENT "${HEADER_CONTENT}
#define ${NAMESPACE}${f} ${function}
")