git: 544deacc90f4 - main - libcrypto: group definitions for libcrypto and fips

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From: Mark Johnston <markj_at_FreeBSD.org>
Date: Wed, 05 Jul 2023 20:01:15 UTC
The branch main has been updated by markj:

URL: https://cgit.FreeBSD.org/src/commit/?id=544deacc90f4f6dc93017a6e18b2fdbf3bc4e059

commit 544deacc90f4f6dc93017a6e18b2fdbf3bc4e059
Author:     Pierre Pronchery <pierre@freebsdfoundation.org>
AuthorDate: 2023-06-30 17:23:57 +0000
Commit:     Mark Johnston <markj@FreeBSD.org>
CommitDate: 2023-07-05 20:00:54 +0000

    libcrypto: group definitions for libcrypto and fips
    
    OpenSSL 3 supports a modular architecture, allowing different providers
    to bring specific implementations of cryptographical algorithms. This
    change makes sure the FIPS module matches build instructions used for
    libcrypto.
    
    Sponsored by:   The FreeBSD Foundation
    Pull Request:   https://github.com/freebsd/freebsd-src/pull/787
---
 secure/lib/libcrypto/Makefile              |  10 ---
 secure/lib/libcrypto/Makefile.common       | 112 +++++++++++++++++++++++++
 secure/lib/libcrypto/Makefile.inc          | 103 +----------------------
 secure/lib/libcrypto/modules/fips/Makefile | 130 ++++-------------------------
 4 files changed, 131 insertions(+), 224 deletions(-)

diff --git a/secure/lib/libcrypto/Makefile b/secure/lib/libcrypto/Makefile
index 28258e796984..4421ea0b0855 100644
--- a/secure/lib/libcrypto/Makefile
+++ b/secure/lib/libcrypto/Makefile
@@ -581,16 +581,6 @@ INCSDIR=	${INCLUDEDIR}/openssl
 
 LIBADD=	pthread
 
-CFLAGS+=	-I${LCRYPTO_SRC}/crypto
-CFLAGS+=	-I${LCRYPTO_SRC}/crypto/ec/curve448
-CFLAGS+=	-I${LCRYPTO_SRC}/crypto/ec/curve448/arch_32
-CFLAGS+=	-I${LCRYPTO_SRC}/crypto/modes
-CFLAGS+=	-I${.OBJDIR}
-
-.if !empty(SRCS:M*.S)
-ACFLAGS+=	-Wa,--noexecstack
-.endif
-
 SRCS+=	buildinf.h
 
 CLEANDIRS=	openssl
diff --git a/secure/lib/libcrypto/Makefile.common b/secure/lib/libcrypto/Makefile.common
new file mode 100644
index 000000000000..7abb73e226fd
--- /dev/null
+++ b/secure/lib/libcrypto/Makefile.common
@@ -0,0 +1,112 @@
+# $FreeBSD$
+
+.include <bsd.endian.mk>
+
+.if ${TARGET_ENDIANNESS} == 1234
+CFLAGS+=	-DL_ENDIAN
+.elif ${TARGET_ENDIANNESS} == 4321
+CFLAGS+=	-DB_ENDIAN
+.endif
+
+.if ${MACHINE_CPUARCH} == "aarch64" || ${MACHINE_CPUARCH} == "amd64" || \
+    ${MACHINE_CPUARCH} == "arm" || ${MACHINE_CPUARCH} == "i386"
+ASM_${MACHINE_CPUARCH}=
+.elif ${MACHINE_ARCH} == "powerpc" || ${MACHINE_ARCH} == "powerpc64" || \
+    ${MACHINE_ARCH} == "powerpc64le"
+ASM_${MACHINE_ARCH}=
+.endif
+
+.if defined(ASM_${MACHINE_CPUARCH}) || defined(ASM_${MACHINE_ARCH})
+CFLAGS+=	-DOPENSSL_CPUID_OBJ
+.if defined(ASM_aarch64)
+CFLAGS+=	-DOPENSSL_BN_ASM_MONT
+CFLAGS+=	-DSHA1_ASM -DSHA256_ASM -DSHA512_ASM
+CFLAGS+=	-DKECCAK1600_ASM
+CFLAGS+=	-DVPAES_ASM
+CFLAGS+=	-DECP_NISTZ256_ASM
+CFLAGS+=	-DPOLY1305_ASM
+.elif defined(ASM_amd64)
+CFLAGS+=	-DOPENSSL_IA32_SSE2
+CFLAGS+=	-DOPENSSL_BN_ASM_MONT -DOPENSSL_BN_ASM_MONT5
+CFLAGS+=	-DOPENSSL_BN_ASM_GF2m
+CFLAGS+=	-DSHA1_ASM -DSHA256_ASM -DSHA512_ASM
+CFLAGS+=	-DKECCAK1600_ASM
+CFLAGS+=	-DRC4_ASM
+CFLAGS+=	-DMD5_ASM
+CFLAGS+=	-DVPAES_ASM
+CFLAGS+=	-DGHASH_ASM
+CFLAGS+=	-DECP_NISTZ256_ASM -DX25519_ASM
+CFLAGS+=	-DPADLOCK_ASM
+CFLAGS+=	-DPOLY1305_ASM
+.elif defined(ASM_arm)
+CFLAGS+=	-DOPENSSL_BN_ASM_MONT -DOPENSSL_BN_ASM_GF2m
+CFLAGS+=	-DSHA1_ASM -DSHA256_ASM -DSHA512_ASM
+CFLAGS+=	-DKECCAK1600_ASM
+CFLAGS+=	-DBSAES_ASM
+CFLAGS+=	-DGHASH_ASM
+CFLAGS+=	-DECP_NISTZ256_ASM
+CFLAGS+=	-DPOLY1305_ASM
+.elif defined(ASM_i386)
+CFLAGS+=	-DOPENSSL_IA32_SSE2
+CFLAGS+=	-DOPENSSL_BN_ASM_PART_WORDS -DOPENSSL_BN_ASM_MONT
+CFLAGS+=	-DOPENSSL_BN_ASM_GF2m
+CFLAGS+=	-DSHA1_ASM -DSHA256_ASM -DSHA512_ASM
+CFLAGS+=	-DRC4_ASM
+CFLAGS+=	-DMD5_ASM
+CFLAGS+=	-DRMD160_ASM
+CFLAGS+=	-DVPAES_ASM
+CFLAGS+=	-DWHIRLPOOL_ASM
+CFLAGS+=	-DGHASH_ASM
+CFLAGS+=	-DECP_NISTZ256_ASM
+CFLAGS+=	-DPADLOCK_ASM
+CFLAGS+=	-DPOLY1305_ASM
+.elif defined(ASM_powerpc)
+CFLAGS+=	-DOPENSSL_BN_ASM_MONT
+CFLAGS+=	-DAES_ASM
+CFLAGS+=	-DVPAES_ASM
+CFLAGS+=	-DSHA1_ASM
+CFLAGS+=	-DSHA256_ASM
+CFLAGS+=	-DSHA512_ASM
+CFLAGS+=	-DPOLY1305_ASM
+.elif defined(ASM_powerpc64)
+CFLAGS+=	-DOPENSSL_BN_ASM_MONT
+CFLAGS+=	-DAES_ASM
+CFLAGS+=	-DVPAES_ASM
+CFLAGS+=	-DSHA1_ASM
+CFLAGS+=	-DSHA256_ASM
+CFLAGS+=	-DSHA512_ASM
+CFLAGS+=	-DPOLY1305_ASM
+CFLAGS+=	-DECP_NISTZ256_ASM
+CFLAGS+=	-DX25519_ASM
+CFLAGS+=	-DKECCAK1600_ASM
+.elif defined(ASM_powerpc64le)
+CFLAGS+=	-DOPENSSL_BN_ASM_MONT
+CFLAGS+=	-DAES_ASM
+CFLAGS+=	-DVPAES_ASM
+CFLAGS+=	-DSHA1_ASM
+CFLAGS+=	-DSHA256_ASM
+CFLAGS+=	-DSHA512_ASM
+CFLAGS+=	-DPOLY1305_ASM
+CFLAGS+=	-DECP_NISTZ256_ASM
+CFLAGS+=	-DX25519_ASM
+CFLAGS+=	-DKECCAK1600_ASM
+.endif
+.endif
+
+MANDIR=		${SHAREDIR}/openssl/man/man
+
+CFLAGS+=	-DOPENSSLDIR="\"/etc/ssl\""
+CFLAGS+=	-DENGINESDIR="\"${LIBDIR}/engines-3\""
+CFLAGS+=	-DMODULESDIR="\"${LIBDIR}/ossl-modules\""
+
+CFLAGS+=	-DNDEBUG
+
+CFLAGS+=	-I${LCRYPTO_SRC}/crypto
+CFLAGS+=	-I${LCRYPTO_SRC}/crypto/ec/curve448
+CFLAGS+=	-I${LCRYPTO_SRC}/crypto/ec/curve448/arch_32
+CFLAGS+=	-I${LCRYPTO_SRC}/crypto/modes
+CFLAGS+=	-I${.OBJDIR}
+
+.if !empty(SRCS:M*.S)
+ACFLAGS+=	-Wa,--noexecstack
+.endif
diff --git a/secure/lib/libcrypto/Makefile.inc b/secure/lib/libcrypto/Makefile.inc
index d995fb2a0cb2..d462d9f82857 100644
--- a/secure/lib/libcrypto/Makefile.inc
+++ b/secure/lib/libcrypto/Makefile.inc
@@ -14,108 +14,7 @@ CFLAGS+=	-I${LCRYPTO_SRC}/include
 CFLAGS+=	-I${LCRYPTO_SRC}/providers/common/include
 CFLAGS+=	-I${LCRYPTO_SRC}/providers/implementations/include
 
-.include <bsd.endian.mk>
-
-.if ${TARGET_ENDIANNESS} == 1234
-CFLAGS+=	-DL_ENDIAN
-.elif ${TARGET_ENDIANNESS} == 4321
-CFLAGS+=	-DB_ENDIAN
-.endif
-
-.if ${MACHINE_CPUARCH} == "aarch64" || ${MACHINE_CPUARCH} == "amd64" || \
-    ${MACHINE_CPUARCH} == "arm" || ${MACHINE_CPUARCH} == "i386"
-ASM_${MACHINE_CPUARCH}=
-.elif ${MACHINE_ARCH} == "powerpc" || ${MACHINE_ARCH} == "powerpc64" || \
-    ${MACHINE_ARCH} == "powerpc64le"
-ASM_${MACHINE_ARCH}=
-.endif
-
-.if defined(ASM_${MACHINE_CPUARCH}) || defined(ASM_${MACHINE_ARCH})
-CFLAGS+=	-DOPENSSL_CPUID_OBJ
-.if defined(ASM_aarch64)
-CFLAGS+=	-DOPENSSL_BN_ASM_MONT
-CFLAGS+=	-DSHA1_ASM -DSHA256_ASM -DSHA512_ASM
-CFLAGS+=	-DKECCAK1600_ASM
-CFLAGS+=	-DVPAES_ASM
-CFLAGS+=	-DECP_NISTZ256_ASM
-CFLAGS+=	-DPOLY1305_ASM
-.elif defined(ASM_amd64)
-CFLAGS+=	-DOPENSSL_IA32_SSE2
-CFLAGS+=	-DOPENSSL_BN_ASM_MONT -DOPENSSL_BN_ASM_MONT5
-CFLAGS+=	-DOPENSSL_BN_ASM_GF2m
-CFLAGS+=	-DSHA1_ASM -DSHA256_ASM -DSHA512_ASM
-CFLAGS+=	-DKECCAK1600_ASM
-CFLAGS+=	-DRC4_ASM
-CFLAGS+=	-DMD5_ASM
-CFLAGS+=	-DVPAES_ASM
-CFLAGS+=	-DGHASH_ASM
-CFLAGS+=	-DECP_NISTZ256_ASM -DX25519_ASM
-CFLAGS+=	-DPADLOCK_ASM
-CFLAGS+=	-DPOLY1305_ASM
-.elif defined(ASM_arm)
-CFLAGS+=	-DOPENSSL_BN_ASM_MONT -DOPENSSL_BN_ASM_GF2m
-CFLAGS+=	-DSHA1_ASM -DSHA256_ASM -DSHA512_ASM
-CFLAGS+=	-DKECCAK1600_ASM
-CFLAGS+=	-DBSAES_ASM
-CFLAGS+=	-DGHASH_ASM
-CFLAGS+=	-DECP_NISTZ256_ASM
-CFLAGS+=	-DPOLY1305_ASM
-.elif defined(ASM_i386)
-CFLAGS+=	-DOPENSSL_IA32_SSE2
-CFLAGS+=	-DOPENSSL_BN_ASM_PART_WORDS -DOPENSSL_BN_ASM_MONT
-CFLAGS+=	-DOPENSSL_BN_ASM_GF2m
-CFLAGS+=	-DSHA1_ASM -DSHA256_ASM -DSHA512_ASM
-CFLAGS+=	-DRC4_ASM
-CFLAGS+=	-DMD5_ASM
-CFLAGS+=	-DRMD160_ASM
-CFLAGS+=	-DVPAES_ASM
-CFLAGS+=	-DWHIRLPOOL_ASM
-CFLAGS+=	-DGHASH_ASM
-CFLAGS+=	-DECP_NISTZ256_ASM
-CFLAGS+=	-DPADLOCK_ASM
-CFLAGS+=	-DPOLY1305_ASM
-.elif defined(ASM_powerpc)
-CFLAGS+=	-DOPENSSL_BN_ASM_MONT
-CFLAGS+=	-DAES_ASM
-CFLAGS+=	-DVPAES_ASM
-CFLAGS+=	-DSHA1_ASM
-CFLAGS+=	-DSHA256_ASM
-CFLAGS+=	-DSHA512_ASM
-CFLAGS+=	-DPOLY1305_ASM
-.elif defined(ASM_powerpc64)
-CFLAGS+=	-DOPENSSL_BN_ASM_MONT
-CFLAGS+=	-DAES_ASM
-CFLAGS+=	-DVPAES_ASM
-CFLAGS+=	-DSHA1_ASM
-CFLAGS+=	-DSHA256_ASM
-CFLAGS+=	-DSHA512_ASM
-CFLAGS+=	-DPOLY1305_ASM
-CFLAGS+=	-DECP_NISTZ256_ASM
-CFLAGS+=	-DX25519_ASM
-CFLAGS+=	-DKECCAK1600_ASM
-.elif defined(ASM_powerpc64le)
-CFLAGS+=	-DOPENSSL_BN_ASM_MONT
-CFLAGS+=	-DAES_ASM
-CFLAGS+=	-DVPAES_ASM
-CFLAGS+=	-DSHA1_ASM
-CFLAGS+=	-DSHA256_ASM
-CFLAGS+=	-DSHA512_ASM
-CFLAGS+=	-DPOLY1305_ASM
-CFLAGS+=	-DECP_NISTZ256_ASM
-CFLAGS+=	-DX25519_ASM
-CFLAGS+=	-DKECCAK1600_ASM
-.endif
-.endif
-
-.if defined(LIB)
-CFLAGS+=	-DOPENSSLDIR="\"/etc/ssl\""
-CFLAGS+=	-DENGINESDIR="\"${LIBDIR}/engines-3\""
-CFLAGS+=	-DMODULESDIR="\"${LIBDIR}/ossl-modules\""
-.endif
-
-CFLAGS+=	-DNDEBUG
-
-MANDIR=		${SHAREDIR}/openssl/man/man
+.include "Makefile.common"
 
 .for pcfile in ${PCFILES}
 ${pcfile}:	${pcfile}.in
diff --git a/secure/lib/libcrypto/modules/fips/Makefile b/secure/lib/libcrypto/modules/fips/Makefile
index 510d017d27ab..c8b79e3badfd 100644
--- a/secure/lib/libcrypto/modules/fips/Makefile
+++ b/secure/lib/libcrypto/modules/fips/Makefile
@@ -4,123 +4,14 @@ SHLIB_NAME?=	fips.so
 
 CFLAGS+=	-DFIPS_MODULE
 
-SRCS=	fips_entry.c fipsprov.c self_test.c self_test_kats.c
-
-# XXX from secure/lib/libcrypto/Makefile.inc
-.include <bsd.own.mk>
-
-#.include <bsd.endian.mk>
-#
-#.if ${TARGET_ENDIANNESS} == 1234
-#CFLAGS+=	-DL_ENDIAN
-#.elif ${TARGET_ENDIANNESS} == 4321
-#CFLAGS+=	-DB_ENDIAN
-#.endif
-
-.if ${MACHINE_CPUARCH} == "aarch64" || ${MACHINE_CPUARCH} == "amd64" || \
-    ${MACHINE_CPUARCH} == "arm" || ${MACHINE_CPUARCH} == "i386"
-ASM_${MACHINE_CPUARCH}=
-.elif ${MACHINE_ARCH} == "powerpc" || ${MACHINE_ARCH} == "powerpc64" || \
-    ${MACHINE_ARCH} == "powerpc64le"
-ASM_${MACHINE_ARCH}=
-.endif
+SRCS+=	fips_entry.c fipsprov.c self_test.c self_test_kats.c
 
-.if defined(ASM_${MACHINE_CPUARCH}) || defined(ASM_${MACHINE_ARCH})
-CFLAGS+=	-DOPENSSL_CPUID_OBJ
-.if defined(ASM_aarch64)
-CFLAGS+=	-DOPENSSL_BN_ASM_MONT
-CFLAGS+=	-DSHA1_ASM -DSHA256_ASM -DSHA512_ASM
-CFLAGS+=	-DKECCAK1600_ASM
-CFLAGS+=	-DVPAES_ASM
-CFLAGS+=	-DECP_NISTZ256_ASM
-CFLAGS+=	-DPOLY1305_ASM
-.elif defined(ASM_amd64)
-CFLAGS+=	-DOPENSSL_IA32_SSE2
-CFLAGS+=	-DOPENSSL_BN_ASM_MONT -DOPENSSL_BN_ASM_MONT5
-CFLAGS+=	-DOPENSSL_BN_ASM_GF2m
-CFLAGS+=	-DSHA1_ASM -DSHA256_ASM -DSHA512_ASM
-CFLAGS+=	-DKECCAK1600_ASM
-CFLAGS+=	-DRC4_ASM
-CFLAGS+=	-DMD5_ASM
-CFLAGS+=	-DVPAES_ASM
-CFLAGS+=	-DGHASH_ASM
-CFLAGS+=	-DECP_NISTZ256_ASM -DX25519_ASM
-CFLAGS+=	-DPADLOCK_ASM
-CFLAGS+=	-DPOLY1305_ASM
-.elif defined(ASM_arm)
-CFLAGS+=	-DOPENSSL_BN_ASM_MONT -DOPENSSL_BN_ASM_GF2m
-CFLAGS+=	-DSHA1_ASM -DSHA256_ASM -DSHA512_ASM
-CFLAGS+=	-DKECCAK1600_ASM
-CFLAGS+=	-DBSAES_ASM
-CFLAGS+=	-DGHASH_ASM
-CFLAGS+=	-DECP_NISTZ256_ASM
-CFLAGS+=	-DPOLY1305_ASM
-.elif defined(ASM_i386)
-CFLAGS+=	-DOPENSSL_IA32_SSE2
-CFLAGS+=	-DOPENSSL_BN_ASM_PART_WORDS -DOPENSSL_BN_ASM_MONT
-CFLAGS+=	-DOPENSSL_BN_ASM_GF2m
-CFLAGS+=	-DSHA1_ASM -DSHA256_ASM -DSHA512_ASM
-CFLAGS+=	-DRC4_ASM
-CFLAGS+=	-DMD5_ASM
-CFLAGS+=	-DRMD160_ASM
-CFLAGS+=	-DVPAES_ASM
-CFLAGS+=	-DWHIRLPOOL_ASM
-CFLAGS+=	-DGHASH_ASM
-CFLAGS+=	-DECP_NISTZ256_ASM
-CFLAGS+=	-DPADLOCK_ASM
-CFLAGS+=	-DPOLY1305_ASM
-.elif defined(ASM_powerpc)
-CFLAGS+=	-DOPENSSL_BN_ASM_MONT
-CFLAGS+=	-DAES_ASM
-CFLAGS+=	-DVPAES_ASM
-CFLAGS+=	-DSHA1_ASM
-CFLAGS+=	-DSHA256_ASM
-CFLAGS+=	-DSHA512_ASM
-CFLAGS+=	-DPOLY1305_ASM
-.elif defined(ASM_powerpc64)
-CFLAGS+=	-DOPENSSL_BN_ASM_MONT
-CFLAGS+=	-DAES_ASM
-CFLAGS+=	-DVPAES_ASM
-CFLAGS+=	-DSHA1_ASM
-CFLAGS+=	-DSHA256_ASM
-CFLAGS+=	-DSHA512_ASM
-CFLAGS+=	-DPOLY1305_ASM
-CFLAGS+=	-DECP_NISTZ256_ASM
-CFLAGS+=	-DX25519_ASM
-CFLAGS+=	-DKECCAK1600_ASM
-.elif defined(ASM_powerpc64le)
-CFLAGS+=	-DOPENSSL_BN_ASM_MONT
-CFLAGS+=	-DAES_ASM
-CFLAGS+=	-DVPAES_ASM
-CFLAGS+=	-DSHA1_ASM
-CFLAGS+=	-DSHA256_ASM
-CFLAGS+=	-DSHA512_ASM
-CFLAGS+=	-DPOLY1305_ASM
-CFLAGS+=	-DECP_NISTZ256_ASM
-CFLAGS+=	-DX25519_ASM
-CFLAGS+=	-DKECCAK1600_ASM
-.endif
-.endif
+.include "../../Makefile.common"
 
 # crypto
 SRCS+=	provider_core.c provider_predefined.c \
 	core_fetch.c core_algorithm.c core_namemap.c self_test_core.c
 
-# crypto/ec
-SRCS+=	ec_lib.c ecp_smpl.c ecp_mont.c ecp_nist.c ec_cvt.c ec_mult.c \
-        ec_curve.c ec_check.c ec_key.c ec_kmeth.c ecx_key.c ec_asn1.c \
-        ec2_smpl.c \
-        ecp_oct.c ec2_oct.c ec_oct.c ecdh_ossl.c \
-        ecdsa_ossl.c ecdsa_sign.c ecdsa_vrf.c curve25519.c \
-        curve448/f_generic.c curve448/scalar.c \
-        curve448/curve448_tables.c curve448/eddsa.c curve448/curve448.c \
-        ec_backend.c ecx_backend.c ecdh_kdf.c curve448/arch_64/f_impl64.c \
-        curve448/arch_32/f_impl32.c
-SRCS+=	cryptlib.c params.c params_from_text.c bsearch.c ex_data.c o_str.c \
-	threads_pthread.c threads_none.c initthread.c \
-	context.c sparse_array.c asn1_dsa.c packet.c param_build.c \
-	param_build_set.c der_writer.c threads_lib.c params_dup.c
-
 SRCS+=	cpuid.c ctype.c
 .if defined(ASM_aarch64)
 SRCS+=	arm64cpuid.S armcap.c
@@ -172,9 +63,24 @@ SRCS+=	dh_lib.c dh_key.c dh_group_params.c dh_check.c dh_backend.c dh_gen.c \
 
 # crypto/dsa
 SRCS+=	dsa_sign.c dsa_vrf.c dsa_lib.c dsa_ossl.c dsa_check.c \
-        dsa_key.c dsa_backend.c dsa_gen.c
+	dsa_key.c dsa_backend.c dsa_gen.c
 
 # crypto/ec
+SRCS+=	ec_lib.c ecp_smpl.c ecp_mont.c ecp_nist.c ec_cvt.c ec_mult.c \
+	ec_curve.c ec_check.c ec_key.c ec_kmeth.c ecx_key.c ec_asn1.c \
+	ec2_smpl.c \
+	ecp_oct.c ec2_oct.c ec_oct.c ecdh_ossl.c \
+	ecdsa_ossl.c ecdsa_sign.c ecdsa_vrf.c curve25519.c \
+	curve448/f_generic.c curve448/scalar.c \
+	curve448/curve448_tables.c curve448/eddsa.c curve448/curve448.c \
+	ec_backend.c ecx_backend.c ecdh_kdf.c curve448/arch_64/f_impl64.c \
+	curve448/arch_32/f_impl32.c
+SRCS+=	cryptlib.c params.c params_from_text.c bsearch.c ex_data.c o_str.c \
+	threads_pthread.c threads_none.c initthread.c \
+	context.c sparse_array.c asn1_dsa.c packet.c param_build.c \
+	param_build_set.c der_writer.c threads_lib.c params_dup.c
+
+.include <bsd.opts.mk>
 .if ${MACHINE_ABI:Mlittle-endian} && ${MACHINE_ABI:Mlong64}
 SRCS+=	ecp_nistp224.c ecp_nistp256.c ecp_nistp521.c ecp_nistputil.c
 .endif