#!/bin/bash -eu

# Copyright 2018 The Wuffs Authors.

#

# Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or

# https://www.apache.org/licenses/LICENSE-2.0> or the MIT license

# <LICENSE-MIT or https://opensource.org/licenses/MIT>, at your

# option. This file may not be copied, modified, or distributed

# except according to those terms.

#

# SPDX-License-Identifier: Apache-2.0 OR MIT

# ----------------

# See BUILD.md and build-all.sh for more discussion.

if [ ! -e wuffs-root-directory.txt ]; then

echo "$0 should be run from the Wuffs root directory."

exit 1

fi

CC=${CC:-gcc}

CXX=${CXX:-g++}

LDFLAGS=${LDFLAGS:-}

# The "-fdata-sections -ffunction-sections -Wl,--gc-sections" produces smaller

# binaries. See commit 41fce8a8 "Strip examples of unused data and functions".

CFLAGS=${CFLAGS:--O3 -fdata-sections -ffunction-sections -Wall -Wl,--gc-sections}

CXXFLAGS=${CXXFLAGS:--O3 -fdata-sections -ffunction-sections -Wall -Wl,--gc-sections}

mkdir -p gen/bin

sources=$@

if [ $# -eq 0 ]; then

sources=example/*

fi

for f in $sources; do

f=${f%/}

f=${f##*/}

if [ -z $f ]; then

continue

fi

if [ $f = imageviewer ]; then

# example/imageviewer is unusual in that needs additional libraries.

echo "Building (C++) gen/bin/example-$f"

$CXX $CXXFLAGS example/$f/*.cc \

$LDFLAGS -lxcb -lxcb-image -lxcb-render -lxcb-render-util \

-o gen/bin/example-$f

elif [ $f = "sdl-imageviewer" ]; then

# example/sdl-imageviewer is unusual in that needs additional libraries.

echo "Building (C++) gen/bin/example-$f"

$CXX $CXXFLAGS example/$f/*.cc \

$LDFLAGS -lSDL2 -lSDL2_image \

-o gen/bin/example-$f

elif [ $f = "toy-genlib" ]; then

# example/toy-genlib is unusual in that it uses separately compiled

# libraries (built by "wuffs genlib", e.g. by running build-all.sh) instead

# of directly #include'ing Wuffs' .c files.

if [ -e gen/lib/c/$CC-static/libwuffs.a ]; then

echo "Building (C) gen/bin/example-$f"

$CC $CFLAGS -static -I.. example/$f/*.c gen/lib/c/$CC-static/libwuffs.a \

$LDFLAGS -o gen/bin/example-$f

else

echo "Skipping gen/bin/example-$f; run \"wuffs genlib\" first"

fi

elif [ -e example/$f/*.c ]; then

echo "Building (C) gen/bin/example-$f"

$CC $CFLAGS example/$f/*.c $LDFLAGS -o gen/bin/example-$f

elif [ $f = "jsonfindptrs" ]; then

echo "Building (C++) gen/bin/example-$f"

$CXX $CXXFLAGS -std=c++17 example/$f/*.cc $LDFLAGS -o gen/bin/example-$f

elif [ -e example/$f/*.cc ]; then

echo "Building (C++) gen/bin/example-$f"

$CXX $CXXFLAGS example/$f/*.cc $LDFLAGS -o gen/bin/example-$f

fi

done