From: Matthew Fernandez <matthew.fernandez@gmail.com>
Date: Sun, 21 Feb 2021 05:35:01 +0000 (-0800)
Subject: remove use of sed in CMake files
X-Git-Tag: 2.47.0~36^2
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=b2a452f33d4a7e4932023c4c6e6d04e71e9c067f;p=graphviz

remove use of sed in CMake files

We now no longer need sed in either CMake or Visual Studio, removing it as a
build dependency on Windows.
---

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8f2528ded..0bbe0ccea 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -11,6 +11,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - remove regex usage #1919
 - RxSpencer is no longer a dependency on Windows
 - gvmap.sh is compatible with POSIX shells in addition to ksh
+- sed is no longer a build dependency on Windows
 
 ### Fixed
 - Fix gvpr -? to actually print usage and exit non-zero
diff --git a/lib/expr/CMakeLists.txt b/lib/expr/CMakeLists.txt
index 727271610..d58a7d455 100644
--- a/lib/expr/CMakeLists.txt
+++ b/lib/expr/CMakeLists.txt
@@ -8,7 +8,8 @@ BISON_TARGET(
 add_custom_command(
     OUTPUT exparse.c
     MAIN_DEPENDENCY y.tab.c
-    COMMAND sed -e "s/fprintf/sfprintf/g" -e "s/FILE/Sfio_t/g" -e "s/stderr/sfstderr/g" ${CMAKE_CURRENT_BINARY_DIR}/y.tab.c > exparse.c
+    COMMAND ${CMAKE_COMMAND}
+    ARGS -P ${CMAKE_CURRENT_SOURCE_DIR}/exparse-replacements.cmake
 )
 
 if (WIN32)
diff --git a/lib/expr/exparse-replacements.cmake b/lib/expr/exparse-replacements.cmake
new file mode 100644
index 000000000..12fddd1e1
--- /dev/null
+++ b/lib/expr/exparse-replacements.cmake
@@ -0,0 +1,6 @@
+# replacement steps corresponding to the sed commands in Makefile.am
+FILE(READ y.tab.c data0)
+STRING(REPLACE "fprintf" "sfprintf" data1 "${data0}")
+STRING(REPLACE "FILE"    "Sfio_t"   data2 "${data1}")
+STRING(REPLACE "stderr"  "sfstderr" data3 "${data2}")
+FILE(WRITE exparse.c "${data3}")