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-rw-r--r--config/cmake/HDFCompilerFlags.cmake19
1 files changed, 12 insertions, 7 deletions
diff --git a/config/cmake/HDFCompilerFlags.cmake b/config/cmake/HDFCompilerFlags.cmake
index 72141c0..a40b525 100644
--- a/config/cmake/HDFCompilerFlags.cmake
+++ b/config/cmake/HDFCompilerFlags.cmake
@@ -111,8 +111,11 @@ if (NOT MSVC)
list (APPEND H5_CFLAGS0 "-Wsign-compare -Wtrigraphs -Wwrite-strings")
endif()
elseif (CMAKE_C_COMPILER_ID STREQUAL "GNU")
- ADD_H5_FLAGS (HDF5_CMAKE_C_FLAGS "${HDF5_SOURCE_DIR}/config/gnu-warnings/general")
- ADD_H5_FLAGS (H5_CFLAGS0 "${HDF5_SOURCE_DIR}/config/gnu-warnings/error-general")
+ # Add general CFlags except for older versions that are no longer supported
+ if (NOT CMAKE_C_COMPILER_VERSION VERSION_LESS 4.2)
+ ADD_H5_FLAGS (HDF5_CMAKE_C_FLAGS "${HDF5_SOURCE_DIR}/config/gnu-warnings/general")
+ ADD_H5_FLAGS (H5_CFLAGS0 "${HDF5_SOURCE_DIR}/config/gnu-warnings/error-general")
+ endif ()
# gcc automatically inlines based on the optimization level
# this is just a failsafe
list (APPEND H5_CFLAGS0 "-finline-functions")
@@ -149,14 +152,16 @@ if (NOT MSVC)
if (CMAKE_C_COMPILER_ID STREQUAL "GNU")
- # Append warning flags that only gcc 4.3+ knows about
- ADD_H5_FLAGS (H5_CFLAGS1 "${HDF5_SOURCE_DIR}/config/gnu-warnings/4.3")
- #
# Technically, variable-length arrays are part of the C99 standard, but
# we should approach them a bit cautiously... Only needed for gcc 4.X
- if (CMAKE_C_COMPILER_VERSION VERSION_LESS 5.0)
+ if (CMAKE_C_COMPILER_VERSION VERSION_LESS 5.0 AND NOT CMAKE_C_COMPILER_VERSION VERSION_LESS 4.2)
ADD_H5_FLAGS (H5_CFLAGS1 "${HDF5_SOURCE_DIR}/config/gnu-warnings/4.2-4.last")
endif ()
+ # Append warning flags that only gcc 4.3+ knows about
+ if (CMAKE_C_COMPILER_VERSION VERSION_LESS 4.3 AND NOT CMAKE_C_COMPILER_VERSION VERSION_LESS 4.2)
+ ADD_H5_FLAGS (H5_CFLAGS1 "${HDF5_SOURCE_DIR}/config/gnu-warnings/4.3")
+ endif ()
+
# Append more extra warning flags that only gcc 4.4+ know about
if (NOT CMAKE_C_COMPILER_VERSION VERSION_LESS 4.4)
@@ -174,7 +179,7 @@ if (NOT MSVC)
endif ()
# Append more extra warning flags that only gcc 4.6 and less know about
- if (CMAKE_C_COMPILER_VERSION VERSION_LESS 4.7)
+ if (CMAKE_C_COMPILER_VERSION VERSION_LESS 4.7 AND NOT CMAKE_C_COMPILER_VERSION VERSION_LESS 4.2)
ADD_H5_FLAGS (H5_CFLAGS1 "${HDF5_SOURCE_DIR}/config/gnu-warnings/4.2-4.6")
endif ()