Also set TEXINPUTS when launching ForkedCall processes.

git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@39742 a592a061-630c-0410-9148-cb99ea01b6c8

src/graphics/PreviewLoader.cpp

@@ -608,7 +608,7 @@ void PreviewLoader::Impl::startLoading(bool wait)
 	string const command = libScriptSearch(cs.str());
 
 	if (wait) {
-		ForkedCall call;
+		ForkedCall call(buffer_.filePath());
 		int ret = call.startScript(ForkedProcess::Wait, command);
 		static int fake = (2^20) + 1;
 		int pid = fake++;
@@ -624,7 +624,7 @@ void PreviewLoader::Impl::startLoading(bool wait)
 		convert_ptr(new ForkedCall::SignalType);
 	convert_ptr->connect(bind(&Impl::finishedGenerating, this, _1, _2));
 
-	ForkedCall call;
+	ForkedCall call(buffer_.filePath());
 	int ret = call.startScript(command, convert_ptr);
 
 	if (ret != 0) {

src/support/ForkedCalls.cpp

@@ -15,6 +15,7 @@
 #include "support/ForkedCalls.h"
 
 #include "support/debug.h"
+#include "support/environment.h"
 #include "support/filetools.h"
 #include "support/lstrings.h"
 #include "support/lyxlib.h"
@@ -23,6 +24,8 @@
 
 #include "support/bind.h"
 
+#include "LyXRC.h"
+
 #include <cerrno>
 #include <queue>
 #include <sstream>
@@ -270,6 +273,25 @@ int ForkedProcess::waitForChild()
 //
 /////////////////////////////////////////////////////////////////////
 
+ForkedCall::ForkedCall(string const & path)
+	: cmd_prefix_(empty_string())
+{
+	if (path.empty() || lyxrc.texinputs_prefix.empty())
+		return;
+
+	string const texinputs = os::latex_path_list(
+			replaceCurdirPath(path, lyxrc.texinputs_prefix));
+	string const sep = string(1, os::path_separator(os::TEXENGINE));
+	string const env = getEnv("TEXINPUTS");
+
+	if (os::shell() == os::UNIX)
+		cmd_prefix_ = "env 'TEXINPUTS=." + sep + texinputs
+						 + sep + env + "' ";
+	else
+		cmd_prefix_ = "cmd /p /c set TEXINPUTS=." + sep + texinputs
+							  + sep + env + " & ";
+}
+
 
 int ForkedCall::startScript(Starttype wait, string const & what)
 {
@@ -296,7 +318,7 @@ int ForkedCall::startScript(string const & what, SignalTypePtr signal)
 // generate child in background
 int ForkedCall::generateChild()
 {
-	string line = trim(command_);
+	string const line = trim(cmd_prefix_ + command_);
 	if (line.empty())
 		return 1;
 

src/support/ForkedCalls.h

@@ -15,14 +15,13 @@
 #define FORKEDCALLS_H
 
 #include "support/shared_ptr.h"
+#include "support/strfwd.h"
 #include <boost/signal.hpp>
 
 #ifdef HAVE_SYS_TYPES_H
 # include <sys/types.h>
 #endif
 
-#include <string>
-
 namespace lyx {
 namespace support {
 
@@ -150,6 +149,8 @@ private:
 
 class ForkedCall : public ForkedProcess {
 public:
+	///
+	ForkedCall(std::string const & path = empty_string());
 	///
 	virtual shared_ptr<ForkedProcess> clone() const {
 		return shared_ptr<ForkedProcess>(new ForkedCall(*this));
@@ -175,6 +176,8 @@ public:
 private:
 	///
 	virtual int generateChild();
+	///
+	std::string cmd_prefix_;
 };