Fix issue with including mbstring to binary while building with alpine

Author: donhardman

build-alpine

@@ -11,7 +11,8 @@ install_deps() {
   arch=$(arch)
   # Do basic configuration of the system, and install build tools
   apk update && \
-    apk add binutils cmake make libgcc musl-dev gcc g++ perl linux-headers && \
+    apk add binutils cmake make libgcc musl-dev gcc g++ perl \
+      oniguruma-dev linux-headers file && \
     ln -s "/usr/bin/${arch}-alpine-linux-musl-gcc-ar" "/usr/bin/${arch}-alpine-linux-musl-ar" && \
     ln -s "/usr/bin/${arch}-alpine-linux-musl-gcc-ranlib" "/usr/bin/${arch}-alpine-linux-musl-ranlib" && \
     ln -s "/usr/bin/${arch}-alpine-linux-musl-gcc-nm" "/usr/bin/${arch}-alpine-linux-musl-nm" && \
@@ -23,7 +24,7 @@ install_deps() {
 }
 
 install_dev_deps() {
-  apk add oniguruma-dev gmp-dev
+  apk add gmp-dev
 
   test -d libzip-1.9.2 && rm -f $_
   curl -sSL https://github.com/nih-at/libzip/releases/download/v1.9.2/libzip-1.9.2.tar.gz | tar -xzf -
@@ -57,6 +58,7 @@ ENABLE_STATIC=yes
   --enable-sockets \
   --enable-zts --enable-parallel \
   --with-openssl --with-zlib \
+  --enable-mbstring \
   "${BUILD_EXTRA[@]}"
 
 sed -ie 's/PHP_INI_ENTRY("openssl.cafile", NULL, PHP_INI_PERDIR, NULL)/PHP_INI_ENTRY("openssl.cafile", "\/etc\/ssl\/cert.pem", PHP_INI_PERDIR, NULL)/g' ext/openssl/openssl.c