diff --git a/posix/Makefile b/posix/Makefile
index bdd3e71cca..a4f85a9444 100644
--- a/posix/Makefile
+++ b/posix/Makefile
@@ -139,16 +139,27 @@ CFLAGS-waitid.c = -fexceptions
 CFLAGS-waitpid.c = -fexceptions -fasynchronous-unwind-tables
 CFLAGS-getopt.c = -fexceptions
 CFLAGS-wordexp.c = -fexceptions
+CFLAGS-wordexp.os = -fomit-frame-pointer
 CFLAGS-sysconf.c = -fexceptions -DGETCONF_DIR='"$(libexecdir)/getconf"'
 CFLAGS-pathconf.c = -fexceptions
 CFLAGS-fpathconf.c = -fexceptions
 CFLAGS-spawn.c = -fexceptions
+CFLAGS-spawn.os = -fomit-frame-pointer
 CFLAGS-spawnp.c = -fexceptions
+CFLAGS-spawnp.os = -fomit-frame-pointer
 CFLAGS-spawni.c = -fexceptions
+CFLAGS-spawni.os = -fomit-frame-pointer
 CFLAGS-pause.c = -fexceptions
 CFLAGS-glob.c = $(uses-callbacks) -fexceptions
 CFLAGS-glob64.c = $(uses-callbacks) -fexceptions
 CFLAGS-getconf.c = -DGETCONF_DIR='"$(libexecdir)/getconf"'
+CFLAGS-execve.os = -fomit-frame-pointer
+CFLAGS-fexecve.os = -fomit-frame-pointer
+CFLAGS-execv.os = -fomit-frame-pointer
+CFLAGS-execle.os = -fomit-frame-pointer
+CFLAGS-execl.os = -fomit-frame-pointer
+CFLAGS-execvp.os = -fomit-frame-pointer
+CFLAGS-execlp.os = -fomit-frame-pointer
 
 tstgetopt-ARGS = -a -b -cfoobar --required foobar --optional=bazbug \
 		--none random --col --color --colour
diff --git a/stdlib/Makefile b/stdlib/Makefile
index 8e9ef28cb4..cdf5a91bd0 100644
--- a/stdlib/Makefile
+++ b/stdlib/Makefile
@@ -92,6 +92,7 @@ CFLAGS-bsearch.c = $(uses-callbacks)
 CFLAGS-msort.c = $(uses-callbacks)
 CFLAGS-qsort.c = $(uses-callbacks)
 CFLAGS-system.c = -fexceptions
+CFLAGS-system.os = -fomit-frame-pointer
 CFLAGS-fmtmsg.c = -fexceptions
 
 ifneq (,$(filter %REENTRANT, $(defines)))