Add install.sh/build.sh option --disable-bootstrap

install.sh

@@ -168,6 +168,7 @@ info  "-U (--print-url):        ${arg_U}"
 info  "-v (--version):          ${arg_v}"
 info  "-V (--print-version):    ${arg_V}"
 info  "-y (--yes-to-all):       ${arg_y}"
+info  "-z (--disable-bootstrap):${arg_z}"
 }
 # This file is organized into three sections:
 # 1. Command-line argument and environment variable processing.
@@ -293,14 +294,14 @@ elif [[ ! -z "${arg_D:-${arg_P:-${arg_U:-${arg_V:-${arg_B}}}}}" ||  "${arg_l}" =
 elif [[ "${arg_p:-}" == "opencoarrays" ]]; then
 
   if [[ "${arg_o}" == "${__flag_present}" ]]; then
-    
+
     # Download all prerequisites and exit
     info "source ${OPENCOARRAYS_SRC_DIR}/prerequisites/install-functions/download-all-prerequisites.sh"
     source "${OPENCOARRAYS_SRC_DIR}/prerequisites/install-functions/download-all-prerequisites.sh"
     info "download_all_prerequisites"
     download_all_prerequisites
 
-  else 
+  else
 
     # Install OpenCoarrays
     cd prerequisites || exit 1
@@ -309,7 +310,7 @@ elif [[ "${arg_p:-}" == "opencoarrays" ]]; then
     source "${OPENCOARRAYS_SRC_DIR:-}/prerequisites/build-functions/set_SUDO_if_needed_to_write_to_directory.sh"
     version="$("${opencoarrays_src_dir}/install.sh" -V opencoarrays)"
     set_SUDO_if_needed_to_write_to_directory "${install_path}"
-  
+
     # Using process substitution "> >(...) -" instead of piping to tee via "2>&1 |" ensures that
     # report_results gets the FC value set in build_opencoarrays
     # Source: http://stackoverflow.com/questions/8221227/bash-variable-losing-its-value-strange

install.sh-usage

@@ -21,3 +21,4 @@
   -v --version                Print OpenCoarrays version number.
   -V --print-version [arg]    Print version number for specified package.
   -y --yes-to-all             Build non-interactively by assuming affirmative user responses.
+  -z --disable-bootstrap      Disabling bootstrap build of GCC for speed when a recent GCC is already installed.

prerequisites/build-functions/build_and_install.sh

@@ -6,6 +6,7 @@ source "${OPENCOARRAYS_SRC_DIR}/prerequisites/build-functions/edit_GCC_download_
 
 build_and_install()
 {
+
   num_threads=${arg_j}
   build_path="${OPENCOARRAYS_SRC_DIR}/prerequisites/builds/${package_to_build}-${version_to_build}"
 
@@ -52,17 +53,17 @@ build_and_install()
 
     # Switch download mechanism, if wget is not available
     edit_GCC_download_prereqs_file_if_necessary
-   
+
     # Download GCC prerequisities
     "${PWD}"/contrib/download_prerequisites
 
     info "popd"
     popd
     info "Configuring gcc/g++/gfortran builds with the following command:"
-    info "${download_path}/${package_source_directory}/configure --prefix=${install_path} --enable-languages=c,c++,fortran,lto --disable-multilib --disable-werror"
-    "${download_path}/${package_source_directory}/configure" --prefix="${install_path}" --enable-languages=c,c++,fortran,lto --disable-multilib --disable-werror
-    info "Building with the following command: 'make -j${num_threads} bootstrap'"
-    make "-j${num_threads}" bootstrap
+    info "${download_path}/${package_source_directory}/configure --prefix=${install_path} --enable-languages=c,c++,fortran,lto --disable-multilib --disable-werror ${bootstrap_configure}"
+    "${download_path}/${package_source_directory}/configure" --prefix="${install_path}" --enable-languages=c,c++,fortran,lto --disable-multilib --disable-werror ${bootstrap_configure}
+    info "Building with the following command: 'make -j${num_threads} ${bootstrap_build}'"
+    make "-j${num_threads}" ${bootstrap_build}
     if [[ ! -z "${SUDO:-}" ]]; then
       info "You do not have write permissions to the installation path ${install_path}"
       info "If you have administrative privileges, enter your password to install ${package_to_build}"
@@ -71,7 +72,7 @@ build_and_install()
     ${SUDO:-} make install
 
   fi # end if [[ "${package_to_build}" != "gcc" ]]; then
-  
+
   info "popd"
   popd
 }

prerequisites/build.sh

@@ -111,6 +111,7 @@ info "-U (--print-url):        ${arg_U} "
 info "-v (--version):          ${arg_v} "
 info "-V (--print-version):    ${arg_V} "
 info "-y (--yes-to-all):       ${arg_y} "
+info "-z (--disable-bootstrap):${arg_z} "
 }
 
 if [[ -z "${arg_B}" ]]; then
@@ -147,6 +148,15 @@ if [[ ${arg_o:-} == "${__flag_present}" ]]; then
    exit 0
 fi
 
+# If -z or --disable-bootstrap was specified, disable bootstrap configure & build
+if [[ ${arg_z:-} == "${__flag_present}" ]]; then
+   export bootstrap_configure="--disable-bootstrap"
+   export bootstrap_build=""
+else
+   export bootstrap_configure=""
+   export bootstrap_build="bootstrap"
+fi
+
 if [[ -z "${arg_B}" ]]; then
   # shellcheck source=./build-functions/unpack_if_necessary.sh
   source "${OPENCOARRAYS_SRC_DIR:-}/prerequisites/build-functions/unpack_if_necessary.sh"
@@ -155,7 +165,7 @@ if [[ -z "${arg_B}" ]]; then
   # shellcheck source=./build-functions/set_compilers.sh
   source "${OPENCOARRAYS_SRC_DIR:-}/prerequisites/build-functions/set_compilers.sh"
   set_compilers
- 
+
   # shellcheck source=./build-functions/build_and_install.sh
   source "${OPENCOARRAYS_SRC_DIR:-}/prerequisites/build-functions/build_and_install.sh"
   build_and_install

prerequisites/build.sh-usage

@@ -23,3 +23,4 @@
   -v --version                Print OpenCoarrays version number.
   -V --print-version [arg]    Print installation version for package specified in argument.
   -y --yes-to-all             Build non-interactively by assuming affirmative user responses.
+  -z --disable-bootstrap      Disabling bootstrap build of GCC for speed when a recent GCC is already installed.