dev-libs/xmlsec: respect CFLAGS

Don't force -O.

Signed-off-by: Sam James <sam@gentoo.org>

dev-libs/xmlsec/files/xmlsec-1.3.0-optimisation.patch

@@ -0,0 +1,11 @@
+--- a/configure.ac
++++ b/configure.ac
+@@ -2482,7 +2482,7 @@ AC_ARG_ENABLE([pedantic], [AS_HELP_STRING([--enable-pedantic],[enable pedantic c
+ if test "z$enable_pedantic" = "zno" ; then
+     AC_MSG_RESULT([disabled])
+ else
+-    CFLAGS="$CFLAGS -O -std=c99 -pedantic -pedantic-errors -W -Wall -Wextra"
++    CFLAGS="$CFLAGS -std=c99 -pedantic -W -Wall -Wextra"
+     CFLAGS="$CFLAGS -fno-inline -Wnull-dereference -Wdouble-promotion"
+     CFLAGS="$CFLAGS -Wformat=2 -Wformat-security -Wformat-nonliteral"
+     CFLAGS="$CFLAGS -Wconversion -Wunused -Wshadow -Wpointer-arith -Wcast-align"

dev-libs/xmlsec/xmlsec-1.3.0-r1.ebuild

@@ -3,6 +3,8 @@
 
 EAPI=8
 
+inherit autotools
+
 DESCRIPTION="Command line tool for signing, verifying, encrypting and decrypting XML"
 HOMEPAGE="https://www.aleksey.com/xmlsec"
 SRC_URI="https://www.aleksey.com/xmlsec/download/${PN}1-${PV}.tar.gz"
@@ -43,8 +45,15 @@ BDEPEND="
 PATCHES=(
 	"${FILESDIR}"/${P}-strict-prototypes.patch
 	"${FILESDIR}"/${P}-clang.patch
+	"${FILESDIR}"/${P}-optimisation.patch
 )
 
+src_prepare() {
+	default
+
+	eautoreconf
+}
+
 src_configure() {
 	local myeconfargs=(
 		$(use_enable doc docs)