Add else choice to error flags option (#128)

12 files changed, 271 insertions, 0 deletions

diff --git a/config/clang-cxxflags b/config/clang-cxxflags
index edd62e7..4926313 100644
--- a/config/clang-cxxflags
+++ b/config/clang-cxxflags
@@ -173,6 +173,7 @@ if test "X-clang" = "X-$cxx_vendor" -o "X-Apple LLVM" = "X-$cxx_vendor"; then
 
     H5_CXXFLAGS="$H5_CXXFLAGS $(load_clang_arguments general)"
     H5_ECXXFLAGS="$H5_ECXXFLAGS $(load_clang_arguments error-general)"
+    H5_NECXXFLAGS="$H5_NECXXFLAGS $(load_clang_arguments noerror-general)"
 
     ######################
     # Developer warnings #
diff --git a/config/clang-flags b/config/clang-flags
index b4f5e2e..cb5ce8d 100644
--- a/config/clang-flags
+++ b/config/clang-flags
@@ -173,6 +173,7 @@ if test "X-clang" = "X-$cc_vendor" -o "X-Apple LLVM" = "X-$cc_vendor"; then
 
     H5_CFLAGS="$H5_CFLAGS $(load_clang_arguments general)"
     H5_ECFLAGS="$H5_ECFLAGS $(load_clang_arguments error-general)"
+    H5_NECFLAGS="$H5_NECFLAGS $(load_clang_arguments noerror-general)"
 
     ######################
     # Developer warnings #
diff --git a/config/clang-warnings/noerror-general b/config/clang-warnings/noerror-general
new file mode 100644
index 0000000..ad50dfc
--- /dev/null
+++ b/config/clang-warnings/noerror-general
@@ -0,0 +1,80 @@
+#
+# HDF5 code should not trigger the following warnings under any
+# circumstances, so ask the compiler to treat them as errors:
+#
+-Wbad-function-cast
+-Wimplicit-function-declaration
+-Wincompatible-pointer-types
+-Wmissing-declarations
+-Wpacked
+-Wshadow
+-Wswitch
+#
+# NOTE: Following files are not compatible with incompatible-pointer-types as errors
+#     src/H5Dchunk.c,src/H5Dint.c,src/H5Gint.c,src/H5HFcache.c,src/H5I.c,src/H5T.c
+-Wno-error=incompatible-pointer-types-discards-qualifiers
+#
+#
+# NOTE: File Driver files are not compatible with these warnings as errors
+#     H5FDdirect.c,H5FDmpio.c,H5FDros3.c,
+#       -Werror=unused-function
+#
+-Wunused-function
+#
+#     H5FDdrvr_module.h
+#       -Werror=unused-variable
+#
+-Wunused-variable
+#
+#     H5VLpassthru.c
+#       -Werror=unused-parameter
+#
+-Wunused-parameter
+#
+#
+#
+# NOTE: Tools files are not compatible with these warnings as errors
+#     lib/h5tools.c
+#       -Werror=cast-align
+#
+-Wcast-align
+#
+#     lib/h5tools_utils.c
+#       -Werror=unused-parameter
+#
+#
+# NOTE: JNI files are not compatible with these warnings as errors
+#     jni/h5pDCPLImp.c,jni/nativeData.c,jni/h5util.c,jni/h5rImp.c
+#     jni/h5sImp.c,jni/h5tImp.c
+#       -Werror=cast-align
+#     jni/h5util.c
+#       -Werror=format(-overflow)
+#
+-Wformat
+#
+#
+#Examples and tests do not use the same set of extensive warning flags as libraries
+# Here is a list of tests and examples that have issues with the stricter warnings as error
+#
+# NOTE: Test files are not compatible with these warnings as errors
+#     thread_id.c,
+#       -Werror=unused-function
+#     dsets.c
+#       -Werror=unused-parameter
+#
+#
+# NOTE: Examples files are not compatible with these warnings as errors
+#     h5_vds-eiger.c,h5_vds-exclim.c,h5_vds.c,h5_vds-exc.c,h5_vds-percival-unlim-maxmin.c
+#     h5_vds-percival.c,h5_read.c,h5_rdwt.c,h5_mount.c,h5_extend.c,h5_extend_write.c
+#     h5_write.c,h5_vds-simpleIO.c,h5_ref2reg_deprec.c,h5_crtgrp.c,h5_select.c
+#     h5_vds-percival-unlim.c,h5_crtatt.c,h5_group.c,h5_attribute.c,h5_crtdat.c
+#     h5_reference_deprec.c
+#     h5_rdwt.c,h5_crtgrp.c,h5_crtatt.c,h5_crtdat.c
+#       -Werror=strict-prototypes
+#     h5_rdwt.c,h5_crtgrp.c,h5_crtatt.c,h5_crtdat.c
+#       -Werror=old-style-definition
+#     h5_vds-exclim.c,h5_vds.c,h5_vds-exc.c,
+#       -Werror=unused-variable
+#     h5_elink_unix2win.c,h5_extlink.c,h5_attribute.c
+#       -Werror=unused-parameter
+
diff --git a/config/cmake/HDFCXXCompilerFlags.cmake b/config/cmake/HDFCXXCompilerFlags.cmake
index 8443bbd..5925989 100644
--- a/config/cmake/HDFCXXCompilerFlags.cmake
+++ b/config/cmake/HDFCXXCompilerFlags.cmake
@@ -91,6 +91,8 @@ if (NOT MSVC AND NOT MINGW)
         ADD_H5_FLAGS (HDF5_CMAKE_CXX_FLAGS "${HDF5_SOURCE_DIR}/config/gnu-warnings/cxx-general")
         if (HDF5_ENABLE_WARNINGS_AS_ERRORS)
           ADD_H5_FLAGS (H5_CXXFLAGS0 "${HDF5_SOURCE_DIR}/config/gnu-warnings/cxx-error-general")
+        else ()
+          ADD_H5_FLAGS (H5_CXXFLAGS0 "${HDF5_SOURCE_DIR}/config/gnu-warnings/cxx-noerror-general")
         endif ()
       endif ()
     elseif (CMAKE_CXX_COMPILER_ID STREQUAL "Clang")
@@ -156,6 +158,8 @@ if (NOT MSVC AND NOT MINGW)
       ADD_H5_FLAGS (H5_CXXFLAGS1 "${HDF5_SOURCE_DIR}/config/gnu-warnings/cxx-5")
       if (HDF5_ENABLE_WARNINGS_AS_ERRORS)
         ADD_H5_FLAGS (H5_CXXFLAGS1 "${HDF5_SOURCE_DIR}/config/gnu-warnings/cxx-error-5")
+      else ()
+        ADD_H5_FLAGS (H5_CXXFLAGS1 "${HDF5_SOURCE_DIR}/config/gnu-warnings/cxx-noerror-5")
       endif ()
     endif ()
 
@@ -183,6 +187,8 @@ if (NOT MSVC AND NOT MINGW)
       ADD_H5_FLAGS (H5_CXXFLAGS3 "${HDF5_SOURCE_DIR}/config/gnu-warnings/8")
       #if (HDF5_ENABLE_WARNINGS_AS_ERRORS)
       #  ADD_H5_FLAGS (H5_CXXFLAGS3 "${HDF5_SOURCE_DIR}/config/gnu-warnings/error-8")
+      #else ()
+      #  ADD_H5_FLAGS (H5_CXXFLAGS3 "${HDF5_SOURCE_DIR}/config/gnu-warnings/noerror-8")
       #endif ()
       if (HDF5_ENABLE_DEV_WARNINGS)
         # autotools always add the C flags with the CXX flags
diff --git a/config/cmake/HDFCompilerFlags.cmake b/config/cmake/HDFCompilerFlags.cmake
index 456db36..5f35e61 100644
--- a/config/cmake/HDFCompilerFlags.cmake
+++ b/config/cmake/HDFCompilerFlags.cmake
@@ -110,6 +110,8 @@ if (NOT MSVC AND NOT MINGW)
         ADD_H5_FLAGS (HDF5_CMAKE_C_FLAGS "${HDF5_SOURCE_DIR}/config/gnu-warnings/general")
         if (HDF5_ENABLE_WARNINGS_AS_ERRORS)
           ADD_H5_FLAGS (H5_CFLAGS0 "${HDF5_SOURCE_DIR}/config/gnu-warnings/error-general")
+        else ()
+          ADD_H5_FLAGS (H5_CFLAGS0 "${HDF5_SOURCE_DIR}/config/gnu-warnings/noerror-general")
         endif ()
       endif ()
       # gcc automatically inlines based on the optimization level
@@ -119,6 +121,8 @@ if (NOT MSVC AND NOT MINGW)
       ADD_H5_FLAGS (HDF5_CMAKE_C_FLAGS "${HDF5_SOURCE_DIR}/config/clang-warnings/general")
       if (HDF5_ENABLE_WARNINGS_AS_ERRORS)
         ADD_H5_FLAGS (H5_CFLAGS0 "${HDF5_SOURCE_DIR}/config/clang-warnings/error-general")
+      else ()
+        ADD_H5_FLAGS (H5_CFLAGS0 "${HDF5_SOURCE_DIR}/config/clang-warnings/noerror-general")
       endif ()
     elseif (CMAKE_C_COMPILER_ID STREQUAL "PGI")
       list (APPEND HDF5_CMAKE_C_FLAGS "-Minform=inform")
@@ -175,6 +179,8 @@ if (NOT MSVC AND NOT MINGW)
       ADD_H5_FLAGS (H5_CFLAGS1 "${HDF5_SOURCE_DIR}/config/gnu-warnings/5")
       if (HDF5_ENABLE_WARNINGS_AS_ERRORS)
         ADD_H5_FLAGS (H5_CFLAGS1 "${HDF5_SOURCE_DIR}/config/gnu-warnings/error-5")
+      else ()
+        ADD_H5_FLAGS (H5_CFLAGS1 "${HDF5_SOURCE_DIR}/config/gnu-warnings/error-5")
       endif ()
     endif ()
 
diff --git a/config/gnu-cxxflags b/config/gnu-cxxflags
index 44cbc69..eb490b3 100644
--- a/config/gnu-cxxflags
+++ b/config/gnu-cxxflags
@@ -184,6 +184,7 @@ if test "X-g++" = "X-$cxx_vendor"; then
     if test $cxx_vers_major -eq 4 -a $cxx_vers_minor -ge 8 -o $cxx_vers_major -ge 5; then
         H5_CXXFLAGS="$H5_CXXFLAGS $(load_gnu_arguments cxx-general)"
         H5_ECXXFLAGS="$H5_ECXXFLAGS $(load_gnu_arguments cxx-error-general)"
+        H5_NECXXFLAGS="$H5_NECXXFLAGS $(load_gnu_arguments cxx-noerror-general)"
 
     ######################
     # Developer warnings #
@@ -224,6 +225,7 @@ if test "X-g++" = "X-$cxx_vendor"; then
     if test $cxx_vers_major -ge 5; then
         H5_CXXFLAGS="$H5_CXXFLAGS $(load_gnu_arguments cxx-5)"
         H5_ECXXFLAGS="$H5_ECXXFLAGS $(load_gnu_arguments cxx-error-5)"
+        H5_NECXXFLAGS="$H5_NECXXFLAGS $(load_gnu_arguments cxx-noerror-5)"
     fi
 
     # gcc >= 6
@@ -241,6 +243,7 @@ if test "X-g++" = "X-$cxx_vendor"; then
     if test $cxx_vers_major -ge 8; then
         H5_CXXFLAGS="$H5_CXXFLAGS $(load_gnu_arguments 8)"
         #H5_ECXXFLAGS="$H5_ECXXFLAGS $(load_gnu_arguments error-8)"
+        #H5_NECXXFLAGS="$H5_NECXXFLAGS $(load_gnu_arguments noerror-8)"
         DEVELOPER_WARNING_CXXFLAGS="$DEVELOPER_WARNING_CXXFLAGS $(load_gnu_arguments developer-8)"
         NO_DEVELOPER_WARNING_CXXFLAGS="$NO_DEVELOPER_WARNING_CXXFLAGS $(load_gnu_arguments no-developer-8)"
     fi
diff --git a/config/gnu-flags b/config/gnu-flags
index 5c6745c..f9b9ceb 100644
--- a/config/gnu-flags
+++ b/config/gnu-flags
@@ -196,6 +196,7 @@ if test "X-gcc" = "X-$cc_vendor"; then
     if test $cc_vers_major -eq 4 -a $cc_vers_minor -ge 8 -o $cc_vers_major -gt 4; then
         H5_CFLAGS="$H5_CFLAGS $(load_gnu_arguments general)"
         H5_ECFLAGS="$H5_ECFLAGS $(load_gnu_arguments error-general)"
+        H5_NECFLAGS="$H5_NECFLAGS $(load_gnu_arguments noerror-general)"
 
     ######################
     # Developer warnings #
@@ -235,6 +236,7 @@ if test "X-gcc" = "X-$cc_vendor"; then
     if test $cc_vers_major -ge 5; then
         H5_CFLAGS="$H5_CFLAGS $(load_gnu_arguments 5)"
         H5_ECFLAGS="$H5_ECFLAGS $(load_gnu_arguments error-5)"
+        H5_NECFLAGS="$H5_NECFLAGS $(load_gnu_arguments noerror-5)"
     fi
 
     # gcc >= 6
@@ -252,6 +254,7 @@ if test "X-gcc" = "X-$cc_vendor"; then
     if test $cc_vers_major -ge 8; then
         H5_CFLAGS="$H5_CFLAGS $(load_gnu_arguments 8)"
         H5_ECFLAGS="$H5_ECFLAGS $(load_gnu_arguments error-8)"
+        H5_NECFLAGS="$H5_NECFLAGS $(load_gnu_arguments noerror-8)"
         DEVELOPER_WARNING_CFLAGS="$DEVELOPER_WARNING_CFLAGS $(load_gnu_arguments developer-8)"
         NO_DEVELOPER_WARNING_CFLAGS="$NO_DEVELOPER_WARNING_CFLAGS $(load_gnu_arguments no-developer-8)"
     fi
diff --git a/config/gnu-warnings/cxx-noerror-5 b/config/gnu-warnings/cxx-noerror-5
new file mode 100644
index 0000000..7bce3e8
--- /dev/null
+++ b/config/gnu-warnings/cxx-noerror-5
@@ -0,0 +1,11 @@
+#
+# In GCC 4.4.7, the compiler gripes about shadowed global
+# declarations when a local variable uses the name of a
+# function that's in a system header file.  For some reason,
+# later versions of GCC (e.g., 5.2.0) don't complain about
+# the shadowed globals.  Maybe later versions are less fussy?
+# Anyway, the shadowing seems to be harmless, and GCC 4.4.7
+# is not a supported compiler, so let us promote shadowed globals
+# warnings to errors only for GCC 5 and later.
+#
+-Wshadow
diff --git a/config/gnu-warnings/cxx-noerror-general b/config/gnu-warnings/cxx-noerror-general
new file mode 100644
index 0000000..8cc1d94
--- /dev/null
+++ b/config/gnu-warnings/cxx-noerror-general
@@ -0,0 +1,32 @@
+#
+# HDF5 code should not trigger the following warnings under any
+# circumstances, so ask the compiler to treat them as errors:
+#
+# NOTE: c++/test files are not compatible with these warnings as errors
+#     c++/test/tcompound.cpp
+#       -Werror=cast-align
+-Wcast-align
+# NOTE: c++/src files are not compatible with these warnings as errors
+#     c++/src/H5Object.cpp
+#       -Werror=missing-declarations
+-Wmissing-declarations
+-Wpacked
+-Wredundant-decls
+-Wswitch
+# NOTE: c++/test files are not compatible with these warnings as errors
+#     c++/test/tattr.cpp
+#       -Werror=unused-but-set-variable
+-Wunused-but-set-variable
+-Wunused-function
+-Wunused-variable
+# NOTE: c++/src files are not compatible with these warnings as errors
+#     c++/src/H5Object.cpp,c++/src/H5StrType.cpp,c++/src/H5PredType.cpp
+#       -Werror=unused-parameter
+-Wunused-parameter
+#
+# Other files not compatible
+# NOTE: c++/test files are not compatible with these warnings as errors
+#     c++/test/titerate.cpp,c++/test/tarray.cpp
+#       -Werror=missing-declarations
+#     c++/test/titerate.cpp,c++/test/tarray.cpp,c++/test/tlinks.cpp,c++/test/ttypes.cpp,c++/test/dsets.cpp
+#       -Werror=unused-parameter
diff --git a/config/gnu-warnings/noerror-5 b/config/gnu-warnings/noerror-5
new file mode 100644
index 0000000..a7d40dd
--- /dev/null
+++ b/config/gnu-warnings/noerror-5
@@ -0,0 +1,12 @@
+-Wincompatible-pointer-types
+#
+# In GCC 4.4.7, the compiler gripes about shadowed global
+# declarations when a local variable uses the name of a
+# function that's in a system header file.  For some reason,
+# later versions of GCC (e.g., 5.2.0) don't complain about
+# the shadowed globals.  Maybe later versions are less fussy?
+# Anyway, the shadowing seems to be harmless, and GCC 4.4.7
+# is not a supported compiler, so let us promote shadowed globals
+# warnings to errors only for GCC 5 and later.
+#
+-Wshadow
diff --git a/config/gnu-warnings/noerror-8 b/config/gnu-warnings/noerror-8
new file mode 100644
index 0000000..2f54a4d
--- /dev/null
+++ b/config/gnu-warnings/noerror-8
@@ -0,0 +1,25 @@
+# NOTE: src/ files are not compatible with these warnings as errors
+#     src/H5Dchunk.c
+#       -Werror=cast-function-type
+-Wcast-function-type
+#
+# For GCC 8, promote maybe-initialized warnings to an error.  GCC 8
+# reports 0 maybe-uninitialized warnings where earlier versions
+# make many false reports.  GCC 8 seems to analyze calls to static
+# in order to detect initializations that occur there.  It's possible
+# that GCC 8 only performs that analysis at -O3, though.
+#
+#
+# NOTE: File Driver files are not compatible with these warnings as errors
+#     H5FDlog.c,
+#       -Werror=maybe-uninitialized
+-Wmaybe-uninitialized
+# NOTE: src/ files are not compatible with these warnings as errors
+#     src/H5Shyper.c,src/H5SL.c,src/H5Shyper.c
+#       -Werror=maybe-uninitialized
+# NOTE: Test files are not compatible with these warnings as errors
+#     test/cache_common.c,
+#       -Werror=maybe-uninitialized
+# NOTE: hl/src/ files are not compatible with these warnings as errors
+#     hl/src/H5DS.c,
+#       -Werror=maybe-uninitialized
diff --git a/config/gnu-warnings/noerror-general b/config/gnu-warnings/noerror-general
new file mode 100644
index 0000000..e19014f
--- /dev/null
+++ b/config/gnu-warnings/noerror-general
@@ -0,0 +1,91 @@
+#
+# HDF5 code should not trigger the following warnings under any
+# circumstances, so ask the compiler to treat them as errors:
+#
+-Wbad-function-cast
+-Wdeclaration-after-statement
+-Wimplicit-function-declaration
+-Wmissing-declarations
+-Wmissing-prototypes
+-Wnested-externs
+-Wold-style-definition
+-Wpacked
+-Wpointer-sign
+-Wpointer-to-int-cast
+-Wredundant-decls
+-Wstrict-prototypes
+-Wswitch
+#
+#-Werror=discarded-qualifiers
+#
+#
+# NOTE: File Driver files are not compatible with these warnings as errors
+#     H5FDdirect.c,H5FDmpio.c,H5FDros3.c,
+#       -Werror=unused-function
+#
+-Wunused-function
+#
+#     H5FDdrvr_module.h
+#       -Werror=unused-variable
+#
+-Wunused-variable
+#
+#     H5VLpassthru.c
+#       -Werror=unused-parameter
+#
+-Wunused-parameter
+#
+#
+#
+# NOTE: Tools files are not compatible with these warnings as errors
+#     lib/h5tools.c
+#       -Werror=cast-align
+#
+-Wcast-align
+#
+#     lib/h5diff_array.c
+#       -Werror=unused-but-set-variable
+#
+-Wunused-but-set-variable
+#
+#     lib/h5tools_utils.c
+#       -Werror=unused-parameter
+#
+#
+# NOTE: JNI files are not compatible with these warnings as errors
+#     jni/h5pDCPLImp.c,jni/nativeData.c,jni/h5util.c,jni/h5rImp.c
+#     jni/h5sImp.c,jni/h5tImp.c
+#       -Werror=cast-align
+#     jni/h5util.c
+#       -Werror=format(-overflow)
+#
+-Wformat
+#
+#
+#Examples and tests do not use the same set of extensive warning flags as libraries
+# Here is a list of tests and examples that have issues with the stricter warnings as error
+#
+# NOTE: Test files are not compatible with these warnings as errors
+#     thread_id.c,
+#       -Werror=unused-function
+#     dsets.c
+#       -Werror=unused-parameter
+#     external.c,perform/sio_engine.c
+#       -Werror=format(-truncation)
+#
+#
+# NOTE: Examples files are not compatible with these warnings as errors
+#     h5_vds-eiger.c,h5_vds-exclim.c,h5_vds.c,h5_vds-exc.c,h5_vds-percival-unlim-maxmin.c
+#     h5_vds-percival.c,h5_read.c,h5_rdwt.c,h5_mount.c,h5_extend.c,h5_extend_write.c
+#     h5_write.c,h5_vds-simpleIO.c,h5_ref2reg_deprec.c,h5_crtgrp.c,h5_select.c
+#     h5_vds-percival-unlim.c,h5_crtatt.c,h5_group.c,h5_attribute.c,h5_crtdat.c
+#     h5_reference_deprec.c
+#     h5_rdwt.c,h5_crtgrp.c,h5_crtatt.c,h5_crtdat.c
+#       -Werror=strict-prototypes
+#     h5_rdwt.c,h5_crtgrp.c,h5_crtatt.c,h5_crtdat.c
+#       -Werror=old-style-definition
+#     h5_vds-exclim.c,h5_vds.c,h5_vds-exc.c,
+#       -Werror=unused-variable
+#     h5_elink_unix2win.c,h5_extlink.c,h5_attribute.c
+#       -Werror=unused-parameter
+