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#!/bin/bash
# Anticonf (tm) script by Jeroen Ooms (2017)
# This script will query 'pkg-config' for the required cflags and ldflags.
# If pkg-config is unavailable or does not find the library, try setting
# INCLUDE_DIR and LIB_DIR manually via e.g:
# R CMD INSTALL --configure-vars='INCLUDE_DIR=/.../include LIB_DIR=/.../lib'
# Library settings
PKG_CONFIG_NAME="protobuf"
PKG_DEB_NAME="libprotobuf-dev"
PKG_RPM_NAME="protobuf-devel"
PKG_CSW_NAME="protobuf_dev"
PKG_BREW_NAME="protobuf"
PKG_TEST_HEADER="<google/protobuf/message.h>"
PKG_LIBS="-lprotobuf"
PKG_CFLAGS=""
# Use pkg-config if available (except for on CRAN)
if [ $(command -v pkg-config) ] && [ ! -e "/Volumes/SSD-Data/Builds" ]; then
PKGCONFIG_CFLAGS=$(pkg-config --cflags --silence-errors ${PKG_CONFIG_NAME})
PKGCONFIG_LIBS=$(pkg-config --libs ${PKG_CONFIG_NAME})
PKGCONFIG_MODVERSION=$(pkg-config --modversion --silence-errors ${PKG_CONFIG_NAME})
fi
# Note that cflags may be empty in case of success
if [ "$INCLUDE_DIR" ] || [ "$LIB_DIR" ]; then
echo "Found INCLUDE_DIR and/or LIB_DIR!"
PKG_CFLAGS="-I$INCLUDE_DIR $PKG_CFLAGS"
PKG_LIBS="-L$LIB_DIR $PKG_LIBS"
elif [ "$PKGCONFIG_CFLAGS" ] || [ "$PKGCONFIG_LIBS" ]; then
echo "Found pkg-config cflags and libs!"
PKG_CFLAGS=${PKGCONFIG_CFLAGS}
PKG_LIBS=${PKGCONFIG_LIBS}
elif [[ "$OSTYPE" == "darwin"* ]]; then
if [ $(command -v brew) ]; then
BREWDIR=$(brew --prefix)
else
curl -sfL "https://jeroen.github.io/autobrew/$PKG_BREW_NAME" > $TMPDIR/autobrew
source $TMPDIR/autobrew
fi
PATH="$BREWDIR/opt/$PKG_BREW_NAME/bin:$PATH"
PKG_CFLAGS="-I$BREWDIR/opt/$PKG_BREW_NAME/include"
PKG_LIBS="-L$BREWDIR/opt/$PKG_BREW_NAME/lib $PKG_LIBS"
fi
# Find compiler
CXX11=$(${R_HOME}/bin/R CMD config CXX11)
CPPFLAGS=$(${R_HOME}/bin/R CMD config CPPFLAGS)
# For debugging
echo "Using PKG_CFLAGS=$PKG_CFLAGS"
echo "Using PKG_LIBS=$PKG_LIBS"
# Test configuration
echo "#include $PKG_TEST_HEADER" | ${CXX11} -E ${CPPFLAGS} ${PKG_CFLAGS} -xc++ - >/dev/null
# Customize the error
if [ $? -ne 0 ]; then
echo "------------------------- ANTICONF ERROR ---------------------------"
echo "Configuration failed because $PKG_CONFIG_NAME was not found. Try installing:"
echo " * deb: $PKG_DEB_NAME (Debian, Ubuntu, etc)"
echo " * rpm: $PKG_RPM_NAME (Fedora, EPEL)"
echo " * csw: $PKG_CSW_NAME (Solaris)"
echo " * brew: $PKG_BREW_NAME (OSX)"
echo "If $PKG_CONFIG_NAME is already installed, check that 'pkg-config' is in your"
echo "PATH and PKG_CONFIG_PATH contains a $PKG_CONFIG_NAME.pc file. If pkg-config"
echo "is unavailable you can set INCLUDE_DIR and LIB_DIR manually via:"
echo "R CMD INSTALL --configure-vars='INCLUDE_DIR=... LIB_DIR=...'"
echo "--------------------------------------------------------------------"
exit 1;
fi
# Write to Makevars
sed -e "s|@cflags@|$PKG_CFLAGS|" -e "s|@libs@|$PKG_LIBS|" src/Makevars.in > src/Makevars
# Look for 'protoc' compiler
if [ $(command -v protoc) ]; then
PROTOC_VERSION=$(protoc --version)
echo "Using ${PROTOC_VERSION} from $(command -v protoc)"
else
echo "Failed to run protoc."
echo "Please install the 'protobuf-compiler' package for your system."
exit 1
fi
# Try to check if protoc version matches libproto
if [[ $PROTOC_VERSION != *"$PKGCONFIG_MODVERSION"* ]]; then
echo "Warning: protoc version $PROTOC_VERSION might not match libproto version $PKGCONFIG_MODVERSION.";
fi
# Compile proto file
cd src
protoc *.proto --cpp_out=.
if [ $? -ne 0 ]; then
echo "Error: failed to compile proto files."
exit 1
fi
# Suppress wanrings about pragmas in the autogenerated protobuf headers.
# Uwe + BDR have said this is OK and there is nothing we can do about this.
sed -i.bak "s@ #pragma@/*nowarn*/#pragma@g" *.pb.h || true
rm -f *.bak
# Success
exit 0
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