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Describe source selection approach in comments

This commit is contained in:
Brad King 2012-10-04 14:35:01 -04:00
parent 487c514ebb
commit 5f15eafe83
1 changed files with 24 additions and 1 deletions
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25
CMakeLists.txt
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@ -80,6 +80,14 @@ add_definitions(
)
set_property(DIRECTORY APPEND PROPERTY COMPILE_DEFINITIONS_DEBUG DEBUG)
#-----------------------------------------------------------------------------
# Source files are organized into subdirectories named by platform.
# Store in 'gt_src_list' a list of directory names selected and
# ordered based on the target platform. A given source file name may
# appear in multiple directories but only the instance found earliest
# in the search path will be used. Later instances of the same source
# file name will be ignored.
set(gt_src_list)
set(gen_xfer_desc 0)
if("${CMAKE_SYSTEM_NAME}" MATCHES "Linux")
@ -98,6 +106,10 @@ list(APPEND gt_src_list
sr_port_cm
sr_port
)
# Collect the source file names belonging to each directory. Store
# the full path to a directory in 'source_dir_${d}' and the list of
# source file names in the directory in 'sources_${d}'.
foreach(d ${gt_src_list})
set(source_dir_${d} ${GTM_SOURCE_DIR}/${d})
file(GLOB sources_${d} RELATIVE ${source_dir_${d}}
@ -111,13 +123,18 @@ if(gen_bootstrap)
set(sources_gen cmerrors_ctl.c cmierrors_ctl.c gdeerrors_ctl.c merrors_ctl.c ttt.c)
endif()
# The C preprocessor include search path consists of every source
# directory ordered by 'gt_src_list'.
set(includes)
foreach(d ${gt_src_list})
list(APPEND includes ${source_dir_${d}})
endforeach()
include_directories(${includes})
# We generate some uniquely-named headers in the top of the build tree.
include_directories(${GTM_BINARY_DIR})
# Function to select the first instance of a given source file name
# found in the ordered 'gt_src_list' search path.
function(select_file src_var name)
set(found "")
foreach(d ${gt_src_list})
@ -133,6 +150,9 @@ function(select_file src_var name)
set("${src_var}" "${found}" PARENT_SCOPE)
endfunction()
# Macro to search directories ordered by 'gt_src_list' for a given
# list of source file names, assign them to a target, and exclude the
# source file names from inclusion in libmumps.
set(sources_used "")
macro(set_source_list target)
foreach(name ${ARGN})
@ -153,6 +173,8 @@ macro(set_source_list target)
endforeach()
endmacro()
# Macro like set_source_list but that loads the list of source file
# names from a file.
macro(load_source_list target listfile)
file(STRINGS "${listfile}" names)
set_source_list(${target} ${names})
@ -160,6 +182,7 @@ endmacro()
#-----------------------------------------------------------------------------
# Assign sources to libraries.
load_source_list(libcmisockettcp sr_unix_gnp/libcmisockettcp.list)
load_source_list(libdbcertify sr_unix/libdbcertify.list)
load_source_list(libdse sr_unix/libdse.list)
@ -170,8 +193,8 @@ load_source_list(liblke sr_unix/liblke.list)
load_source_list(libmupip sr_unix/libmupip.list)
load_source_list(libstub sr_unix/libstub.list)
# Assign sources to executables.
set_source_list(gtm_threadgbl_deftypes gtm_threadgbl_deftypes)
set_source_list(dbcertify dbcertify dbcertify_cmd)
set_source_list(dse dse dse_cmd)
set_source_list(ftok ftok)