a7d7f0965efb3593fa74de84e7d9265dd8d0b05a
braney
  Fri Jun 12 11:02:29 2026 -0700
Revert "common.mk: default COPT to -O3 instead of -O -g"

This reverts commit a4ac71abc9e7bc32f98fd7c60ff8a48cba1ff056.

diff --git src/inc/common.mk src/inc/common.mk
index 1264811397b..436e3696011 100644
--- src/inc/common.mk
+++ src/inc/common.mk
@@ -3,31 +3,31 @@
 # allow the somewhat more modern C syntax, e.g. 'for (int i=5; i<10, i++)'
 CFLAGS += -std=c99
 
 # This is required to get the cgiLoader.mk compile target to work.  for some
 # reason, make's %.o: %.c overrides the rule below, cause the compiles to fail
 # due to lack of -I flags in rule.  Running with make -r to not use built-in
 # rules fixes, however MAKEFLAGS += -r doesn't do the trick, this does.
 # make is a very mysterious fellow traveler.
 GNUMAKEFLAGS += -r
 
 # add additional library paths
 L += ${LDFLAGS}
 
 # to build on sundance: CC=gcc -mcpu=v9 -m64
 ifeq (${COPT},)
-    COPT=-O3
+    COPT=-O -g
 endif
 ifeq (${MACHTYPE},)
     MACHTYPE:=$(shell uname -m)
 #    $(info MACHTYPE was empty, set to: ${MACHTYPE})
 endif
 ifneq (,$(findstring -,$(MACHTYPE)))
 #    $(info MACHTYPE has - sign ${MACHTYPE})
     MACHTYPE:=$(shell uname -m)
 #    $(info MACHTYPE has - sign set to: ${MACHTYPE})
 endif
 
 HG_DEFS=-D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_GNU_SOURCE -DMACHTYPE_${MACHTYPE}
 HG_INC+=-I../inc -I../../inc -I../../../inc -I../../../../inc -I../../../../../inc -I$(kentSrc)/submodules/htslib
 
 # to check for Mac OSX Darwin specifics: