Hi, can somebody please review and sponsor the following tiny build fix:
http://cr.openjdk.java.net/~simonis/webrevs/2015/8141416/ https://bugs.openjdk.java.net/browse/JDK-8141416 Building hotspot on certain systems results in a series of: expr: syntax error expr: syntax error expr: syntax error expr: syntax error It is caused by a peculiarity of the gcc version on Ubuntu where "gcc -dumpversion" doesn't print a micro-version: Ubuntu: $ gcc -dumpversion 4.6 Any other Linux: $ gcc -dumpversion 4.8.3 This "feature" is tracked under https://bugs.launchpad.net/ubuntu/+source/gcc-4.8/+bug/1360404 and has been fixed for gcc 4.9 but won't be fixed for older versions of gcc. In hotspot/make/linux/makefiles/gcc.make we parse the micro-version of gcc and use it in the following way: CC_VER_MICRO := $(shell $(CC) -dumpversion | sed 's/egcs-//' | cut -d'.' -f3) ifeq ($(shell expr $(CC_VER_MAJOR) = 4 \& $(CC_VER_MINOR) = 1 \& $(CC_VER_MICRO) = 1), 1) $(error "GCC $(CC_VER_MAJOR).$(CC_VER_MINOR).$(CC_VER_MICRO) not supported because of https://gcc.gnu.org/bugzilla/show_bug.cgi?id=27724";) endif The shell expression results in a syntax error if $(CC_VER_MICRO) because it expands to something like "expr 4 = 4 & 3 = 1 & = 1" Thank you and best regards, Volker
