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Move DL fatal message #382

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merged 3 commits into from
Aug 25, 2023
Merged

Move DL fatal message #382

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6589a88
Move DL fatal message
mjcarroll Aug 25, 2023
a9b509f
Merge branch 'gz-cmake3' into mjcarroll/move_dl_warning
mjcarroll Aug 25, 2023
89b29ac
Move error location
mjcarroll Aug 25, 2023
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13 changes: 6 additions & 7 deletions cmake/GzRelocatableBinaries.cmake
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Original file line number Diff line number Diff line change
Expand Up @@ -74,19 +74,12 @@ macro(gz_add_get_install_prefix_impl)
"gz_add_get_install_prefix_impl: missing parameter OVERRIDE_INSTALL_PREFIX_ENV_VARIABLE")
endif()


if(NOT TARGET ${PROJECT_LIBRARY_TARGET_NAME})
message(FATAL_ERROR
"Target ${PROJECT_LIBRARY_TARGET_NAME} required by gz_add_get_install_prefix_impl\n"
"does not exist.")
endif()

if(NOT TARGET ${DL_TARGET})
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message(FATAL_ERROR
"gz_add_get_install_prefix_impl called without DL_TARGET defined,\n"
"please add gz_find_package(DL) if you want to use gz_add_get_install_prefix_impl.")
endif()

get_target_property(target_type ${PROJECT_LIBRARY_TARGET_NAME} TYPE)
if(NOT (target_type STREQUAL "STATIC_LIBRARY" OR target_type STREQUAL "MODULE_LIBRARY" OR target_type STREQUAL "SHARED_LIBRARY"))
message(FATAL_ERROR "gz_add_get_install_prefix_impl: library ${_library} is of unsupported type ${target_type}")
Expand All @@ -100,6 +93,12 @@ macro(gz_add_get_install_prefix_impl)
option(GZ_ENABLE_RELOCATABLE_INSTALL "If ON, enable the feature of providing a relocatable install prefix in shared library." OFF)

if ((target_type STREQUAL "MODULE_LIBRARY" OR target_type STREQUAL "SHARED_LIBRARY") AND GZ_ENABLE_RELOCATABLE_INSTALL)
if(NOT TARGET ${DL_TARGET})
message(FATAL_ERROR
"gz_add_get_install_prefix_impl called without DL_TARGET defined,\n"
"please add gz_find_package(DL) if you want to use gz_add_get_install_prefix_impl.")
endif()

# We can't query the LOCATION property of the target due to https://cmake.org/cmake/help/v3.25/policy/CMP0026.html
# We can only access the directory of the library at generation time via $<TARGET_FILE_DIR:tgt>
file(GENERATE OUTPUT "${gz_add_get_install_prefix_impl_GENERATED_CPP}"
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