--- libgcrypt-1.10.3.orig/acinclude.m4
+++ libgcrypt-1.10.3/acinclude.m4
@@ -130,10 +130,10 @@ EOF
     ac_nlist=conftest.nm
     if AC_TRY_EVAL(NM conftest.$ac_objext \| $lt_cv_sys_global_symbol_pipe \| cut -d \' \' -f 2 \> $ac_nlist) && test -s "$ac_nlist"; then
       # See whether the symbols have a leading underscore.
-      if egrep '^_nm_test_func' "$ac_nlist" >/dev/null; then
+      if grep -E '^_nm_test_func' "$ac_nlist" >/dev/null; then
         ac_cv_sys_symbol_underscore=yes
       else
-        if egrep '^nm_test_func ' "$ac_nlist" >/dev/null; then
+        if grep -E '^nm_test_func ' "$ac_nlist" >/dev/null; then
           :
         else
           echo "configure: cannot find nm_test_func in $ac_nlist" >&AS_MESSAGE_LOG_FD
--- libgcrypt-1.10.3.orig/src/libgcrypt-config.in
+++ libgcrypt-1.10.3/src/libgcrypt-config.in
@@ -154,7 +154,7 @@ if test "$echo_cflags" = "yes"; then
 
     tmp=""
     for i in $includes $cflags_final; do
-       if echo "$tmp" | fgrep -v -- "$i" >/dev/null; then
+       if echo "$tmp" | @GREP@ -F -v -- "$i" >/dev/null; then
            tmp="$tmp $i"
        fi
     done
@@ -175,7 +175,7 @@ if test "$echo_libs" = "yes"; then
 
     tmp=""
     for i in $libdirs $libs_final; do
-       if echo "$tmp" | fgrep -v -- "$i" >/dev/null; then
+       if echo "$tmp" | @GREP@ -F -v -- "$i" >/dev/null; then
            tmp="$tmp $i"
        fi
     done