Merge branch 'cw/maint-exec-defpath' into maint

* cw/maint-exec-defpath:
autoconf: Check if <paths.h> exists and set HAVE_PATHS_H
exec_cmd.c: replace hard-coded path list with one from <paths.h>

diff --cc Makefile
index ed4c733c623fc23fc324efe1fa6e58cef63961e9,98ac6e1fed6c844a67ac0bb2aa7290fff295b995..b18768e0aedfbf246173293f74049456070deec3
--- 1/Makefile
--- 2/Makefile
+++ b/Makefile
@@@ -884,9 -856,9 +891,10 @@@ ifeq ($(uname_S),NetBSD
        BASIC_LDFLAGS += -L/usr/pkg/lib $(CC_LD_DYNPATH)/usr/pkg/lib
        USE_ST_TIMESPEC = YesPlease
        NO_MKSTEMPS = YesPlease
+       HAVE_PATHS_H = YesPlease
  endif
  ifeq ($(uname_S),AIX)
 +      DEFAULT_PAGER = more
        NO_STRCASESTR=YesPlease
        NO_MEMMEM = YesPlease
        NO_MKDTEMP = YesPlease

diff --cc configure.ac
Simple merge

diff --cc exec_cmd.c
Simple merge

diff --cc git-compat-util.h
Simple merge