lang/crystal: fix broken base SSL usage

crystal needs pkgconfig to determine precisely which SSL variant is
present, and patch itself accordingly, but this is not present in
FreeBSD base. Patch directly, what would have been provided by
pkgconfig, for currently supported FreeBSD versions.

PR:          257658
Approved by: greg@unrelenting.technology (maintainer)
Differential Revision: https://reviews.freebsd.org/D31435

lang/crystal/Makefile

@@ -1,5 +1,6 @@
 PORTNAME=		crystal
 DISTVERSION=		1.2.2
+PORTREVISION=		1
 CATEGORIES=		lang
 MASTER_SITES=		https://dl.unrelenting.technology/crystal/:bootstrap
 DISTFILES=		${BOOTSTRAP_PATH}:bootstrap
@@ -22,7 +23,7 @@ BUILD_DEPENDS=	${LOCALBASE}/bin/llvm-config${LLVM_VERSION}:devel/llvm${BOOTSTRAP
 		git:devel/git
 RUN_DEPENDS=	pkg-config:devel/pkgconf
 
-USES=		compiler gmake pkgconfig
+USES=		compiler gmake pkgconfig ssl
 
 USE_GITHUB=	yes
 GH_ACCOUNT=	crystal-lang
@@ -52,6 +53,15 @@ OPTIONS_SUB=		yes
 IGNORE=		not supported on anything but FreeBSD
 .endif
 
+# crystal needs pkgconfig to determine SSL variants but these are not
+# present in FreeBSD base. We splice in the correct info based on
+# FreeBSD version and hope it doesn't change during minor releases.
+# See post-patch for the substitutions of these patches.
+.if ${SSL_DEFAULT} == "base"
+EXTRA_PATCHES=	${PATCHDIR}/extra-patch-src_openssl_lib__crypto.cr \
+		${PATCHDIR}/extra-patch-src_openssl_lib__ssl.cr
+.endif
+
 post-extract:
 	${MKDIR} ${WRKSRC}/.build
 	${CP} ${DISTDIR}/${DIST_SUBDIR}/${BOOTSTRAP_PATH} ${WRKSRC}/.build/crystal
@@ -59,6 +69,15 @@ post-extract:
 	${LN} -s x86_64-freebsd ${WRKSRC}/src/lib_c/aarch64-portbld-freebsd
 	${LN} -s x86_64-freebsd ${WRKSRC}/src/lib_c/aarch64-freebsd
 
+post-patch:
+.if ${SSL_DEFAULT} == "base" && ${OSREL:R} < 15
+	@${REINPLACE_CMD} \
+		-e 's|CRYSTAL_SSL_VERSION|1.1.1|g' \
+		-e 's|CRYSTAL_SSL_LDFLAGS|${OPENSSLLIB}|g' \
+		${WRKSRC}/src/openssl/lib_ssl.cr \
+		${WRKSRC}/src/openssl/lib_crypto.cr
+.endif
+
 do-build-DOCS-on:
 	cd ${WRKSRC} && ${SETENV} ${MAKE_ENV} ${MAKE_CMD} ${MAKE_ARGS} docs \
 			CRYSTAL_CACHE_DIR="${WRKDIR}/cache"

lang/crystal/files/extra-patch-src_openssl_lib__crypto.cr

@@ -0,0 +1,27 @@
+--- src/openssl/lib_crypto.cr.orig	2021-08-08 15:06:11 UTC
++++ src/openssl/lib_crypto.cr
+@@ -1,21 +1,11 @@
+ {% begin %}
+   lib LibCrypto
+-    {% from_libressl = (`hash pkg-config 2> /dev/null || printf %s false` != "false") &&
+-                       (`test -f $(pkg-config --silence-errors --variable=includedir libcrypto)/openssl/opensslv.h || printf %s false` != "false") &&
+-                       (`printf "#include <openssl/opensslv.h>\nLIBRESSL_VERSION_NUMBER" | ${CC:-cc} $(pkg-config --cflags --silence-errors libcrypto || true) -E -`.chomp.split('\n').last != "LIBRESSL_VERSION_NUMBER") %}
+-    {% ssl_version = `hash pkg-config 2> /dev/null && pkg-config --silence-errors --modversion libcrypto || printf %s 0.0.0`.split.last.gsub(/[^0-9.]/, "") %}
+-
+-    {% if from_libressl %}
+-      LIBRESSL_VERSION = {{ ssl_version }}
+-      OPENSSL_VERSION = "0.0.0"
+-    {% else %}
+-      LIBRESSL_VERSION = "0.0.0"
+-      OPENSSL_VERSION = {{ ssl_version }}
+-    {% end %}
++    LIBRESSL_VERSION = "0.0.0"
++    OPENSSL_VERSION = "CRYSTAL_SSL_VERSION"
+   end
+ {% end %}
+ 
+-@[Link(ldflags: "`command -v pkg-config > /dev/null && pkg-config --libs --silence-errors libcrypto || printf %s '-lcrypto'`")]
++@[Link(ldflags: "-LCRYSTAL_SSL_LDFLAGS -lcrypto")]
+ lib LibCrypto
+   alias Char = LibC::Char
+   alias Int = LibC::Int

lang/crystal/files/extra-patch-src_openssl_lib__ssl.cr

@@ -0,0 +1,28 @@
+--- src/openssl/lib_ssl.cr.orig	2021-08-08 15:06:09 UTC
++++ src/openssl/lib_ssl.cr
+@@ -6,22 +6,12 @@ require "./lib_crypto"
+ 
+ {% begin %}
+   lib LibSSL
+-    {% from_libressl = (`hash pkg-config 2> /dev/null || printf %s false` != "false") &&
+-                       (`test -f $(pkg-config --silence-errors --variable=includedir libssl)/openssl/opensslv.h || printf %s false` != "false") &&
+-                       (`printf "#include <openssl/opensslv.h>\nLIBRESSL_VERSION_NUMBER" | ${CC:-cc} $(pkg-config --cflags --silence-errors libssl || true) -E -`.chomp.split('\n').last != "LIBRESSL_VERSION_NUMBER") %}
+-    {% ssl_version = `hash pkg-config 2> /dev/null && pkg-config --silence-errors --modversion libssl || printf %s 0.0.0`.split.last.gsub(/[^0-9.]/, "") %}
+-
+-    {% if from_libressl %}
+-      LIBRESSL_VERSION = {{ ssl_version }}
+-      OPENSSL_VERSION = "0.0.0"
+-    {% else %}
+-      LIBRESSL_VERSION = "0.0.0"
+-      OPENSSL_VERSION = {{ ssl_version }}
+-    {% end %}
++    LIBRESSL_VERSION = "0.0.0"
++    OPENSSL_VERSION = "CRYSTAL_SSL_VERSION"
+   end
+ {% end %}
+ 
+-@[Link(ldflags: "`command -v pkg-config > /dev/null && pkg-config --libs --silence-errors libssl || printf %s '-lssl -lcrypto'`")]
++@[Link(ldflags: "-LCRYSTAL_SSL_LDFLAGS -lssl")]
+ lib LibSSL
+   alias Int = LibC::Int
+   alias Char = LibC::Char