From e78b5e29956c2f791ebb7bb3bf8bec3c52c6d9b9 Mon Sep 17 00:00:00 2001
From: Gwenhael Goavec-Merou <gwenhael.goavec-merou@trabucayre.com>
Date: Thu, 29 Jan 2026 16:16:40 +0100
Subject: [PATCH] CMakeLists.txt,main.cpp: option to enable/disable svf_jtag
 support

---
 CMakeLists.txt | 10 ++++++++--
 src/main.cpp   |  8 ++++++++
 2 files changed, 16 insertions(+), 2 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 12c68e1..c827c23 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -37,6 +37,7 @@ option(ENABLE_JLINK            "enable JLink cable (requires libUSB)"         ${
 option(ENABLE_DFU              "enable DFU support (requires libUSB)"         ${ENABLE_CABLE_ALL})
 option(ENABLE_FTDI_BASED_CABLE "enable cables based on FTDI (requires libFTDI" ${ENABLE_CABLE_ALL})
 option(ENABLE_GOWIN_GWU2X      "enable Gowin GWU2X interface"                 ${ENABLE_CABLE_ALL})
+option(ENABLE_SVF_JTAG         "enable SVF support"                           ${ENABLE_CABLE_ALL})
 option(ENABLE_USB_BLASTERI     "enable Altera USB Blaster I support"          ${ENABLE_CABLE_ALL})
 option(ENABLE_USB_BLASTERII    "enable Altera USB Blaster II support"         ${ENABLE_CABLE_ALL})
 
@@ -257,7 +258,6 @@ list(APPEND OPENFPGALOADER_SOURCE
 	src/spiFlash.cpp
 	src/spiInterface.cpp
 	src/epcq.cpp
-	src/svf_jtag.cpp
 	src/jtag.cpp
 )
 
@@ -268,7 +268,6 @@ list(APPEND OPENFPGALOADER_HEADERS
 	src/spiFlashdb.hpp
 	src/epcq.hpp
 	src/spiInterface.hpp
-	src/svf_jtag.hpp
 )
 
 # FTDI Based cables
@@ -504,6 +503,13 @@ list (APPEND OPENFPGALOADER_SOURCE  src/remoteBitbang_client.cpp)
 list (APPEND OPENFPGALOADER_HEADERS src/remoteBitbang_client.hpp)
 endif()
 
+# SVF JTAG file type support
+if (ENABLE_SVF_JTAG)
+list (APPEND OPENFPGALOADER_SOURCE  src/svf_jtag.cpp)
+list (APPEND OPENFPGALOADER_HEADERS src/svf_jtag.hpp)
+add_definitions(-DENABLE_SVF_JTAG)
+endif()
+
 # Xilinx Virtual Cable
 if (ENABLE_XILINX_VIRTUAL_CABLE)
 list (APPEND OPENFPGALOADER_SOURCE  src/xvc_client.cpp src/xvc_server.cpp)
diff --git a/src/main.cpp b/src/main.cpp
index 941d42c..15b0152 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -59,7 +59,9 @@
 #ifdef ENABLE_XILINX_SUPPORT
 #include "xilinx.hpp"
 #endif
+#ifdef ENABLE_SVF_JTAG
 #include "svf_jtag.hpp"
+#endif
 #ifdef ENABLE_XVC
 #include "xvc_server.hpp"
 #endif
@@ -622,6 +624,7 @@ int main(int argc, char **argv)
 	/* detect svf file and program the device */
 	if (!args.file_type.compare("svf") ||
 			args.bit_file.find(".svf") != string::npos) {
+#ifdef ENABLE_SVF_JTAG
 		SVF_jtag *svf = new SVF_jtag(jtag, args.verbose);
 		try {
 			svf->parse(args.bit_file);
@@ -629,6 +632,11 @@ int main(int argc, char **argv)
 			return EXIT_FAILURE;
 		}
 		return EXIT_SUCCESS;
+#else
+		printError("Support for SVF Jtag was not enabled at compile time");
+		delete(jtag);
+		return EXIT_FAILURE;
+#endif
 	}
 
 	/* check if selected device is supported