https://gcc.gnu.org/bugzilla/show_bug.cgi?id=54418
John Paul Adrian Glaubitz <glaubitz at physik dot fu-berlin.de> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |glaubitz at physik dot fu-berlin.d | |e --- Comment #6 from John Paul Adrian Glaubitz <glaubitz at physik dot fu-berlin.de> --- I'm seeing this issue again when compiling postgresql-9.4 with gcc-4.9.1, but I am not sure whether the issues are related. The tail of the build log is: gcc -g -O2 -fstack-protector-strong -Wformat -Werror=format-security -I/usr/include/mit-krb5 -DLINUX_OOM_SCORE_ADJ=0 -Wall -Wmissing-prototypes -Wpointer-arith -Wdeclaration-after-statement -Wendif-labels -Wmissing-format-attribute -Wformat-security -fno-strict-aliasing -fwrapv -fexcess-precision=standard -g -I../../../../src/include -I/«PKGBUILDDIR»/build/../src/include -D_FORTIFY_SOURCE=2 -D_GNU_SOURCE -I/usr/include/libxml2 -I/usr/include/tcl8.6 -c -o timestamp.o /«PKGBUILDDIR»/build/../src/backend/utils/adt/timestamp.c /tmp/ccBriPih.s: Assembler messages: /tmp/ccBriPih.s:1824: Error: invalid operands for opcode /tmp/ccBriPih.s:1838: Error: invalid operands for opcode make[6]: *** [timestamp.o] Error 1 The full buildlog can be found here [1]. Cheers, Adrian