Add warnings to CONFIG_SITE files that can't override gnuCommon

Move the clang and '-g' suggestions to the right places

configure/os/CONFIG_SITE.Common.cygwin-x86

@@ -16,3 +16,9 @@ COMMANDLINE_LIBRARY = READLINE_NCURSESW
 
 # No other libraries needed
 #COMMANDLINE_LIBRARY = READLINE
+
+
+# WARNING: Variables that are set in $(CONFIG)/CONFIG.gnuCommon cannot be
+# overridden in this file for native builds, e.g. variables such as
+#    OPT_CFLAGS_YES, WARN_CFLAGS, SHRLIB_LDFLAGS
+# They must be set in CONFIG_SITE.cygwin-x86.cygwin-x86 instead.

configure/os/CONFIG_SITE.Common.cygwin-x86_64

@@ -11,10 +11,8 @@
 #LDLIBS_READLINE = -lreadline -lcurses
 
 
-# It makes sense to include debugging symbols even in optimized builds
-# in case you want to attach gdb to the process or examine a core-dump.
-# This does cost disk space, but not memory as debug symbols are not
-# loaded into RAM when the binary is loaded.
-OPT_CFLAGS_YES += -g
-OPT_CXXFLAGS_YES += -g
+# WARNING: Variables that are set in $(CONFIG)/CONFIG.gnuCommon cannot be
+# overridden in this file for native builds, e.g. variables such as
+#    OPT_CFLAGS_YES, WARN_CFLAGS, SHRLIB_LDFLAGS
+# They must be set in CONFIG_SITE.cygwin-x86_64.cygwin-x86_64 instead.
 

configure/os/CONFIG_SITE.Common.linux-aarch64

@@ -30,3 +30,9 @@
 # Needs -lcurses (older versions)
 #COMMANDLINE_LIBRARY = READLINE_CURSES
 
+
+# WARNING: Variables that are set in $(CONFIG)/CONFIG.gnuCommon cannot be
+# overridden in this file for native builds, e.g. variables such as
+#    OPT_CFLAGS_YES, WARN_CFLAGS, SHRLIB_LDFLAGS
+# They must be set in CONFIG_SITE.linux-aarch64.linux-aarch64 instead.
+

configure/os/CONFIG_SITE.Common.linux-arm

@@ -33,3 +33,12 @@ COMMANDLINE_LIBRARY = $(strip $(if $(wildcard \
 
 # Readline is broken or you don't want use it:
 #COMMANDLINE_LIBRARY = EPICS
+
+
+# WARNING: Variables that are set in $(CONFIG)/CONFIG.gnuCommon cannot be
+# overridden in this file for native builds, e.g. variables such as
+#    OPT_CFLAGS_YES, WARN_CFLAGS, SHRLIB_LDFLAGS
+# They must be set in CONFIG_SITE.linux-arm.linux-arm instead.
+
+# Permit access to 64-bit file-systems
+OP_SYS_CFLAGS += -D_FILE_OFFSET_BITS=64

configure/os/CONFIG_SITE.Common.linux-x86

@@ -34,22 +34,17 @@ COMMANDLINE_LIBRARY = $(strip $(if $(wildcard \
 #COMMANDLINE_LIBRARY = EPICS
 
 
+# WARNING: Variables that are set in $(CONFIG)/CONFIG.gnuCommon cannot be
+# overridden in this file for native builds, e.g. variables such as
+#    OPT_CFLAGS_YES, WARN_CFLAGS, SHRLIB_LDFLAGS
+# They must be set in CONFIG_SITE.linux-x86.linux-x86 instead.
+
 # Permit access to 64-bit file-systems
 OP_SYS_CFLAGS += -D_FILE_OFFSET_BITS=64
 
-
-# Uncomment the followings lines to build with CLANG instead of GCC.
-#
-#GNU         = NO
-#CMPLR_CLASS = clang
-#CC          = clang
-#CCC         = clang++
-
-
 # Tune GNU compiler output for a specific 32-bit cpu-type
 # (e.g. generic, native, i386, i686, pentium2/3/4, prescott, k6, athlon etc.)
 GNU_TUNE_CFLAGS = -mtune=generic
 
-
 # Developers using a suitable compiler may enable its address sanitizer:
 #ENABLE_ASAN = YES

configure/os/CONFIG_SITE.Common.linux-x86_64

@@ -34,18 +34,14 @@ COMMANDLINE_LIBRARY = $(strip $(if $(wildcard \
 #COMMANDLINE_LIBRARY = EPICS
 
 
-# Uncomment the followings lines to build with CLANG instead of GCC.
-#
-#GNU         = NO
-#CMPLR_CLASS = clang
-#CC          = clang
-#CCC         = clang++
-
+# WARNING: Variables that are set in $(CONFIG)/CONFIG.gnuCommon cannot be
+# overridden in this file for native builds, e.g. variables such as
+#    OPT_CFLAGS_YES, WARN_CFLAGS, SHRLIB_LDFLAGS
+# They must be set in CONFIG_SITE.linux-x86_64.linux-x86_64 instead.
 
 # Tune GNU compiler output for a specific 64-bit cpu-type
 # (e.g. generic, native, core2, nocona, k8, opteron, athlon64, barcelona etc.)
 GNU_TUNE_CFLAGS = -mtune=generic
 
-
 # Developers using a suitable compiler may enable its address sanitizer:
 #ENABLE_ASAN = YES

configure/os/CONFIG_SITE.Common.linuxCommon

@@ -2,10 +2,9 @@
 #
 # Site-specific settings for all linux targets
 
+# WARNING: Variables that are set in $(CONFIG)/CONFIG.gnuCommon cannot be
+# overridden in this file for native builds, e.g. variables such as
+#   OPT_CFLAGS_YES, WARN_CFLAGS, SHRLIB_LDFLAGS
+# They must be set in the host+target specific file instead:
+#   CONFIG_SITE.<linux-arch>.<linux-arch>
 
-# It makes sense to include debugging symbols even in optimized builds
-# in case you want to attach gdb to the process or examine a core-dump.
-# This does cost disk space, but not memory as debug symbols are not
-# loaded into RAM when the binary is loaded.
-OPT_CFLAGS_YES += -g
-OPT_CXXFLAGS_YES += -g

configure/os/CONFIG_SITE.cygwin-x86.cygwin-x86

@@ -6,3 +6,11 @@
 #  GNU_DIR used when COMMANDLINE_LIBRARY is READLINE
 #GNU_DIR=C:/cygwin
 
+
+# It makes sense to include debugging symbols even in optimized builds
+# in case you want to attach gdb to the process or examine a core-dump.
+# This does cost disk space, but not memory as debug symbols are not
+# loaded into RAM when the binary is loaded.
+OPT_CFLAGS_YES += -g
+OPT_CXXFLAGS_YES += -g
+

configure/os/CONFIG_SITE.linux-x86.linux-x86

@@ -3,3 +3,17 @@
 # Site specific definitions for linux-x86 host - linux-x86 target builds
 #-------------------------------------------------------
 
+# It makes sense to include debugging symbols even in optimized builds
+# in case you want to attach gdb to the process or examine a core-dump.
+# This does cost disk space, but not memory as debug symbols are not
+# loaded into RAM when the binary is loaded.
+OPT_CFLAGS_YES += -g
+OPT_CXXFLAGS_YES += -g
+
+# Uncomment the followings lines to build with CLANG instead of GCC.
+#
+#GNU         = NO
+#CMPLR_CLASS = clang
+#CC          = clang
+#CCC         = clang++
+

configure/os/CONFIG_SITE.linux-x86_64.linux-x86_64

@@ -3,4 +3,17 @@
 # Site specific definitions for linux-x86_64 host - linux-x86_64 target builds
 #-------------------------------------------------------
 
+# It makes sense to include debugging symbols even in optimized builds
+# in case you want to attach gdb to the process or examine a core-dump.
+# This does cost disk space, but not memory as debug symbols are not
+# loaded into RAM when the binary is loaded.
+OPT_CFLAGS_YES += -g
+OPT_CXXFLAGS_YES += -g
+
+# Uncomment the followings lines to build with CLANG instead of GCC.
+#
+#GNU         = NO
+#CMPLR_CLASS = clang
+#CC          = clang
+#CCC         = clang++