--- /opt/portage/var/tmp/portage/dev-libs/libgcrypt-1.4.4/work/libgcrypt-1.4.4/cipher/Makefile.dist     2009-01-28 16:25:29.372902400 +0000
+++ /opt/portage/var/tmp/portage/dev-libs/libgcrypt-1.4.4/work/libgcrypt-1.4.4/cipher/Makefile  2009-01-28 16:31:48.418625600 +0000
@@ -559,10 +559,10 @@
 
 # We need to lower the optimization for this module.
 tiger.o: $(srcdir)/tiger.c
-       `echo $(COMPILE) -c $(srcdir)/tiger.c | sed -e 's/-O[2-9s]*/-O1/g' `
+       `echo $(COMPILE) -c $(srcdir)/tiger.c | sed -re 's/(^|[[:space:]])-O([2-9s])?([[:space:]]|$)/ -O1 /g' `
 
 tiger.lo: $(srcdir)/tiger.c
-       `echo $(LTCOMPILE) -c $(srcdir)/tiger.c | sed -e 's/-O[2-9s]*/-O1/g' `
+       `echo $(LTCOMPILE) -c $(srcdir)/tiger.c | sed -re 's/(^|[[:space:]])-O([2-9s])?([[:space:]]|$)/ -O1 /g' `
 # Tell versions [3.59,3.63) of GNU make to not export all variables.
 # Otherwise a system limit (for SysV at least) may be exceeded.
 .NOEXPORT: