Add pcre

recipes/pcre/recipe.sh

+VERSION=8.42
+TAR=https://ftp.pcre.org/pub/pcre/pcre-$VERSION.tar.bz2
+BUILD_DEPENDS=()
+
+function recipe_version {
+    echo "$VERSION"
+    skip=1
+}
+
+function recipe_update {
+    echo "skipping update"
+    skip=1
+}
+
+function recipe_build {
+    sysroot="$(realpath ../sysroot)"
+    export CFLAGS="-I$sysroot/include"
+    export LDFLAGS="-L$sysroot/lib"
+    export LIBS="-Wl,--whole-archive -lpthread -Wl,--no-whole-archive"
+    ./configure \
+        --host=${HOST} \
+        --prefix=/ \
+        --disable-shared \
+        --enable-static
+    make -j"$(nproc)"
+    skip=1
+}
+
+function recipe_test {
+    echo "skipping test"
+    skip=1
+}
+
+function recipe_clean {
+    make clean
+    skip=1
+}
+
+function recipe_stage {
+    dest="$(realpath $1)"
+    make DESTDIR="$dest" install
+    rm -f "$dest/lib/"*.la
+    skip=1
+}

recipes/pcre/redox.patch

+diff -ruwN source/pcretest.c source-new/pcretest.c
+--- source/pcretest.c	2017-06-13 10:49:46.000000000 -0600
++++ source-new/pcretest.c	2019-01-05 11:04:15.198224299 -0700
+@@ -3168,7 +3168,7 @@
+       ((stack_size = get_value((pcre_uint8 *)argv[op+1], &endptr)),
+         *endptr == 0))
+     {
+-#if defined(_WIN32) || defined(WIN32) || defined(__minix) || defined(NATIVE_ZOS) || defined(__VMS)
++#if defined(_WIN32) || defined(WIN32) || defined(__minix) || defined(NATIVE_ZOS) || defined(__VMS) || defined(__redox__)
+     printf("PCRE: -S not supported on this OS\n");
+     exit(1);
+ #else
+@@ -5770,4 +5770,3 @@
+ }
+ 
+ /* End of pcretest.c */
+-