Allow all source files to be modified in configure_make when using configure_in_place = True

examples/configure_modify_input_source/BUILD.bazel

@@ -0,0 +1,18 @@
+load("@rules_cc//cc:defs.bzl", "cc_test")
+load("@rules_foreign_cc//foreign_cc:defs.bzl", "configure_make")
+
+configure_make(
+    name = "simple",
+    configure_in_place = True,
+    lib_source = "//configure_modify_input_source/simple_lib:simple_srcs",
+    targets = [
+        "simple",
+        "install",
+    ],
+)
+
+cc_test(
+    name = "test",
+    srcs = ["testSimple.c"],
+    deps = [":simple"],
+)

examples/configure_modify_input_source/simple_lib/BUILD.bazel

@@ -0,0 +1,5 @@
+filegroup(
+    name = "simple_srcs",
+    srcs = glob(["**"]),
+    visibility = ["//visibility:public"],
+)

examples/configure_modify_input_source/simple_lib/Makefile.in

@@ -0,0 +1,11 @@
+simple: $(OUTPUT) 
+
+$(OUTPUT): ./src/simple.c
+	$(CC) $(CPPFLAGS) -o $(OBJECT) -c ./src/simple.c -I./include -I.
+	$(AR) $(LDFLAGS) 
+
+install: $(OUTPUT)
+	mkdir -p simple 
+	mkdir -p simple/lib
+	cp $(OUTPUT) ./simple/lib/$(OUTPUT)
+	cp -r ./include ./simple

examples/configure_modify_input_source/simple_lib/configure

@@ -0,0 +1,28 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+
+# (Using perl here for replacement to avoid difference in in-place
+# arguments on macOS sed)
+
+perl -i -pe 's/42/0/' src/simple.c
+
+echo "CC = $CC" > Makefile
+echo "LDFLAGS = $LDFLAGS" >> Makefile
+if [[ "$(uname)" == *"NT"* ]]; then
+    echo "AR = ${AR}" >>  Makefile
+    echo "OBJECT = simple.obj" >> Makefile
+    echo "OUTPUT = simple.lib" >> Makefile
+
+    ESCAPED_CPPFLAGS="$(echo ${CFLAGS} | sed 's@\\@/@g')"
+    ESCAPED_LDFLAGS="$(echo ${LDFLAGS} | sed 's@\\@/@g')"
+    echo "CPPFLAGS = /c ${ESCAPED_CPPFLAGS}" >> Makefile
+    echo "LDFLAGS = \$(OBJECT) ${ESCAPED_LDFLAGS} /OUT:\$(OUTPUT)" >> Makefile
+else
+    echo "AR = \"ar\"" >>  Makefile
+    echo "OBJECT = simple.o" >> Makefile
+    echo "OUTPUT = simple.a" >> Makefile
+    echo "CPPFLAGS = ${CFLAGS}" >> Makefile
+    echo "LDFLAGS = rcs \$(OUTPUT) \$(OBJECT)" >> Makefile
+fi
+cat Makefile.in >> Makefile

examples/configure_modify_input_source/simple_lib/include/simple.h

@@ -0,0 +1,6 @@
+#ifndef SIMPLE_H_
+#define SIMPLE_H_ (1)
+
+int simpleFun(void);
+
+#endif // SIMPLE_H_

examples/configure_modify_input_source/simple_lib/src/simple.c

@@ -0,0 +1,5 @@
+#include "simple.h"
+
+int simpleFun(void) {
+  return 42;
+}

examples/configure_modify_input_source/testSimple.c

@@ -0,0 +1,5 @@
+#include "simple.h"
+
+int main(int argc, char **argv) {
+  return simpleFun();
+}

foreign_cc/private/configure_script.bzl

@@ -33,7 +33,7 @@ def create_configure_script(
     root_path = "$$EXT_BUILD_ROOT$$/{}".format(root)
     configure_path = "{}/{}".format(root_path, configure_command)
     if configure_in_place:
-        script.append("##symlink_contents_to_dir## $$EXT_BUILD_ROOT$$/{} $$BUILD_TMPDIR$$".format(root))
+        script.append("##copy_dir_contents_to_dir## $$EXT_BUILD_ROOT$$/{} $$BUILD_TMPDIR$$".format(root))
         root_path = "$$BUILD_TMPDIR$$"
         configure_path = "{}/{}".format(root_path, configure_command)