fix nvcc_lazy error on ninja build (#49448)

tools/nvcc_lazy.sh

@@ -65,12 +65,14 @@ echo "sed -i -e '/LIBRARIES=/{s/\s//g;s/\"\"/ /g}' \${BUILDSH}.pre" >> $1
 echo -e >> $1
 echo "/usr/bin/env bash \${BUILDSH}.pre" >> $1
 echo "STUBF=\$(find \$BUILDDIR -name *.cudafe1.stub.c)" >> $1
-echo "CUFILE=\$(basename -s '.cudafe1.stub.c' \$STUBF)" >> $1
-echo "sed -i -e '/__sti____cudaRegisterAll.*__attribute__/a static void __try____cudaRegisterAll(int);' \$STUBF" >> $1
-echo "sed -i -e 's/__sti____cudaRegisterAll\(.*{\)/__do____cudaRegisterAll\1/' \$STUBF" >> $1
-echo "# sed -i -e \"/__do____cudaRegisterAll\(.*{\)/a static void __try____cudaRegisterAll(int l){static int _ls = 0; if (_ls) return; const char* lm = getenv(\\\"CUDA_MODULE_LOADING\\\"); if (lm&&(lm[0]=='L')&&(lm[1]=='A')&&(lm[2]=='Z')&&(lm[3]=='Y')&&(l!=1)) return; _ls = 1; fprintf(stderr,\\\"===> \${CUFILE} lazy-load? %d\\\\\\\\n\\\", l); __do____cudaRegisterAll();}\" \$STUBF" >> $1
-echo "sed -i -e \"/__do____cudaRegisterAll\(.*{\)/a static void __try____cudaRegisterAll(int l){static int _ls = 0; if (_ls) return; const char* lm = getenv(\\\"CUDA_MODULE_LOADING\\\"); if (lm&&(lm[0]=='L')&&(lm[1]=='A')&&(lm[2]=='Z')&&(lm[3]=='Y')&&(l!=1)) return; _ls = 1; __do____cudaRegisterAll();}\" \$STUBF" >> $1
-echo "sed -i -e '/__try____cudaRegisterAll\(.*{\)/a static void __sti____cudaRegisterAll(void){__try____cudaRegisterAll(0);}' \$STUBF" >> $1
-echo "sed -i -e 's/{\(__device_stub__\)/{__try____cudaRegisterAll(1);\1/' \$STUBF" >> $1
+echo "if [ ! -z \"\$STUBF\" ]; then" >> $1
+echo "  CUFILE=\$(basename -s '.cudafe1.stub.c' \$STUBF)" >> $1
+echo "  sed -i -e '/__sti____cudaRegisterAll.*__attribute__/a static void __try____cudaRegisterAll(int);' \$STUBF" >> $1
+echo "  sed -i -e 's/__sti____cudaRegisterAll\(.*{\)/__do____cudaRegisterAll\1/' \$STUBF" >> $1
+echo "  # sed -i -e \"/__do____cudaRegisterAll\(.*{\)/a static void __try____cudaRegisterAll(int l){static int _ls = 0; if (_ls) return; const char* lm = getenv(\\\"CUDA_MODULE_LOADING\\\"); if (lm&&(lm[0]=='L')&&(lm[1]=='A')&&(lm[2]=='Z')&&(lm[3]=='Y')&&(l!=1)) return; _ls = 1; fprintf(stderr,\\\"===> \${CUFILE} lazy-load? %d\\\\\\\\n\\\", l); __do____cudaRegisterAll();}\" \$STUBF" >> $1
+echo "  sed -i -e \"/__do____cudaRegisterAll\(.*{\)/a static void __try____cudaRegisterAll(int l){static int _ls = 0; if (_ls) return; const char* lm = getenv(\\\"CUDA_MODULE_LOADING\\\"); if (lm&&(lm[0]=='L')&&(lm[1]=='A')&&(lm[2]=='Z')&&(lm[3]=='Y')&&(l!=1)) return; _ls = 1; __do____cudaRegisterAll();}\" \$STUBF" >> $1
+echo "  sed -i -e '/__try____cudaRegisterAll\(.*{\)/a static void __sti____cudaRegisterAll(void){__try____cudaRegisterAll(0);}' \$STUBF" >> $1
+echo "  sed -i -e 's/{\(__device_stub__\)/{__try____cudaRegisterAll(1);\1/' \$STUBF" >> $1
+echo "fi" >> $1
 echo "/usr/bin/env bash \${BUILDSH}.post" >> $1
 echo "rm -rf \$BUILDDIR" >> $1