Replace build scripts with CMake

Rebuilding everything each time was getting a bit slow.

scripts/build.sh

@@ -1,29 +1,7 @@
 #!/bin/sh
-
 cd "$(git rev-parse --show-toplevel)"
-
-CFLAGS="$CFLAGS -std=c11 -pedantic -Wall -Wextra"
-CFLAGS="$CFLAGS -fsanitize=address,undefined"
-CFLAGS="$CFLAGS -O0 -ggdb"
-
-if [ ! -e build ]; then mkdir build; else rm build/*; fi
-
-# Build library
-clang $CFLAGS -Ilib/include -c lib/parse.c -o build/parse.o
-clang $CFLAGS -Ilib/include -c lib/desugar.c -o build/desugar.o
-clang $CFLAGS -Ilib/include -c lib/regex.c -o build/regex.o
-clang $CFLAGS -Ilib/include -c lib/fsa.c -o build/fsa.o
-clang $CFLAGS -Ilib/include -c lib/construct.c -o build/construct.o
-ar -crs build/lib.a build/parse.o build/desugar.o build/regex.o \
-   build/fsa.o build/construct.o
-
-# Build tests
-clang $CFLAGS -Itests/include -c tests/testing.c -o build/testing.o
-clang $CFLAGS -Ilib/include -Itests/include -o build/parse_tests \
-	  tests/parse_tests.c build/testing.o build/lib.a
-clang $CFLAGS -Ilib/include -Itests/include -o build/desugar_tests \
-	  tests/desugar_tests.c build/testing.o build/lib.a
-clang $CFLAGS -Ilib/include -Itests/include -o build/fsa_tests \
-	  tests/fsa_tests.c build/testing.o build/lib.a
-clang $CFLAGS -Ilib/include -Itests/include -o build/construct_tests \
-	  tests/construct_tests.c build/testing.o build/lib.a
+if [ ! -e build ]; then
+	cmake -Bbuild -DCMAKE_BUILD_TYPE=Debug -DCMAKE_C_COMPILER=clang \
+		  -DSANITIZERS=ON
+fi
+cmake --build build

scripts/test.sh

@@ -1,12 +1,3 @@
 #!/bin/sh
-
 cd "$(git rev-parse --show-toplevel)"
-
-fails=0
-
-build/parse_tests || fails=`expr $fails + 1`
-build/desugar_tests || fails=`expr $fails + 1`
-build/fsa_tests || fails=`expr $fails + 1`
-build/construct_tests || fails=`expr $fails + 1`
-
-if [ $fails -eq 0 ]; then echo Tests OK; fi
+ctest --test-dir build