woop/scripts/setup_bls_build_flags.sh

# no shebang; to be sourced from other scripts

unset -v progdir
case "${0}" in
*/*) progdir="${0%/*}";;
*) progdir=.;;
esac

case "${HMY_PATH+set}" in
"")
   unset -v gopath
   gopath=$(go env GOPATH)
   # HMY_PATH is the common root directory of all harmony repos
   HMY_PATH="${gopath%%:*}/src/github.com/harmony-one"
   if [ ! -d $HMY_PATH ]; then
      # "env pwd" uses external pwd(1) implementation and not the Bash built-in,
      # which does not fully dereference symlinks.
      HMY_PATH=$(cd $progdir/../.. && env pwd)
   fi
   ;;
esac
: ${OPENSSL_DIR="/opt/homebrew/opt/openssl@1.1"}
: ${MCL_DIR="${HMY_PATH}/mcl"}
: ${BLS_DIR="${HMY_PATH}/bls"}
export CGO_CFLAGS="-I${BLS_DIR}/include -I${MCL_DIR}/include"
export CGO_LDFLAGS="-L${BLS_DIR}/lib"
export LD_LIBRARY_PATH=${BLS_DIR}/lib:${MCL_DIR}/lib

OS=$(uname -s)
case $OS in
   Darwin)
      export CGO_CFLAGS="-I${BLS_DIR}/include -I${MCL_DIR}/include -I${OPENSSL_DIR}/include"
      export CGO_LDFLAGS="-L${BLS_DIR}/lib -L${OPENSSL_DIR}/lib"
      export LD_LIBRARY_PATH=${BLS_DIR}/lib:${MCL_DIR}/lib:${OPENSSL_DIR}/lib
      export DYLD_FALLBACK_LIBRARY_PATH=$LD_LIBRARY_PATH
      ;;
esac

if [ "$1" = "-v" ]; then
   echo "{ \"CGO_CFLAGS\" : \"$CGO_CFLAGS\",
            \"CGO_LDFLAGS\" : \"$CGO_LDFLAGS\",
            \"LD_LIBRARY_PATH\" : \"$LD_LIBRARY_PATH\",
            \"DYLD_FALLBACK_LIBRARY_PATH\" : \"$DYLD_FALLBACK_LIBRARY_PATH\"}" | jq "."
fi
Factor BLS build flag setup into its own script 6 years ago			`# no shebang; to be sourced from other scripts`

[build] fix jenkins build issue Signed-off-by: Leo Chen <leo@harmony.one> 6 years ago			`unset -v progdir`
			`case "${0}" in`
			`/) progdir="${0%/*}";;`
			`*) progdir=.;;`
			`esac`

Honor HMY_PATH if set 6 years ago			`case "${HMY_PATH+set}" in`
			`"")`
			`unset -v gopath`
			`gopath=$(go env GOPATH)`
			`# HMY_PATH is the common root directory of all harmony repos`
			`HMY_PATH="${gopath%%:*}/src/github.com/harmony-one"`
			`if [ ! -d $HMY_PATH ]; then`
			`# "env pwd" uses external pwd(1) implementation and not the Bash built-in,`
			`# which does not fully dereference symlinks.`
			`HMY_PATH=$(cd $progdir/../.. && env pwd)`
			`fi`
			`;;`
			`esac`
add openssl compatibility on m2 chips using darwin (#4302) Adds support for OpenSSL on MacOS Ventura using m2 chips. 2 years ago			`: ${OPENSSL_DIR="/opt/homebrew/opt/openssl@1.1"}`
Let caller specify where to find OpenSSL/MCL/BLS This is done by defining {OPENSSL,MCL,BLS}_DIR environment variable. 6 years ago			`: ${MCL_DIR="${HMY_PATH}/mcl"}`
			`: ${BLS_DIR="${HMY_PATH}/bls"}`
			`export CGO_CFLAGS="-I${BLS_DIR}/include -I${MCL_DIR}/include"`
			`export CGO_LDFLAGS="-L${BLS_DIR}/lib"`
			`export LD_LIBRARY_PATH=${BLS_DIR}/lib:${MCL_DIR}/lib`
Factor BLS build flag setup into its own script 6 years ago
			`OS=$(uname -s)`
			`case $OS in`
			`Darwin)`
Let caller specify where to find OpenSSL/MCL/BLS This is done by defining {OPENSSL,MCL,BLS}_DIR environment variable. 6 years ago			`export CGO_CFLAGS="-I${BLS_DIR}/include -I${MCL_DIR}/include -I${OPENSSL_DIR}/include"`
			`export CGO_LDFLAGS="-L${BLS_DIR}/lib -L${OPENSSL_DIR}/lib"`
			`export LD_LIBRARY_PATH=${BLS_DIR}/lib:${MCL_DIR}/lib:${OPENSSL_DIR}/lib`
DYLD_LIBRARY_PATH → DYLD_FALLBACK_LIBRARY_PATH DYLD_LIBRARY_PATH has a “look here first before usual places” semantics, in order to let users use an alternative version of a shared library. On the other side, DYLD_FALLBACK_LIBRARY_PATH has a “look here if not found in usual places” semantics, in order to let users specify additional locations where a shared library is found. In our case, if a binary refers to a common shared library found in usual places, we want to use it; we simply want to specify additional locations where BLS/MCL/OpenSSL libraries are found. So it is more appropriate to use DYLD_FALLBACK_LIBRARY_PATH. This also fixes a nasty symbol table mismatch, which is the main reason for this change: Certain commonly used shared libraries - such as libJPEG.dylib, co-located within the ImageIO framework and expected by the main ImageIO library – are often also found in Homebrew or MacPorts root (/opt/local//lib for MacPort). If DYLD_LIBRARY_PATH included /opt/local/lib for OpenSSL, many system programs linked against ImageIO will erroneously pick up libJPEG.dylib in /opt/local/lib, which lacks certain internal symbols that the framework version has. Using DYLD_FALLBACK_LIBRARY_PATH makes dyld honor the full path to the framework version of libJPEG, which is hardcoded in the main ImageIO framework library. 6 years ago			`export DYLD_FALLBACK_LIBRARY_PATH=$LD_LIBRARY_PATH`
Factor BLS build flag setup into its own script 6 years ago			`;;`
			`esac`
Added echo to see new env vars. 5 years ago
make setup_bls_build_flags.sh compatible with zsh 5 years ago			`if [ "$1" = "-v" ]; then`
remove old design code 5 years ago			`echo "{ \"CGO_CFLAGS\" : \"$CGO_CFLAGS\",`
			`\"CGO_LDFLAGS\" : \"$CGO_LDFLAGS\",`
			`\"LD_LIBRARY_PATH\" : \"$LD_LIBRARY_PATH\",`
			`\"DYLD_FALLBACK_LIBRARY_PATH\" : \"$DYLD_FALLBACK_LIBRARY_PATH\"}" \| jq "."`
			`fi`