Add ability to create shared library to the driver. (#985)

Closes #314.

Adds PIC code flag to the requires spots and allows `-static` and
`-shared` flags to be passed to the linker.

docker/build/devdeps.Dockerfile

@@ -178,7 +178,7 @@ RUN apt-get update && apt-get install --no-install-recommends -y wget ca-certifi
     && apt-get autoremove -y --purge && apt-get clean && rm -rf /var/lib/apt/lists/*
 ENV PATH="${PATH}:/usr/local/cmake-3.26/bin"
 RUN apt-get update && apt-get install -y --no-install-recommends \
-        git ninja-build libcurl4-openssl-dev \
+        git ninja-build file libcurl4-openssl-dev \
         python3 python3-pip libpython3-dev \
     && python3 -m pip install --no-cache-dir \
         lit pytest numpy \

test/NVQPP/shared_obj.cpp

@@ -0,0 +1,19 @@
+/*******************************************************************************
+ * Copyright (c) 2022 - 2023 NVIDIA Corporation & Affiliates.                  *
+ * All rights reserved.                                                        *
+ *                                                                             *
+ * This source code and the accompanying materials are made available under    *
+ * the terms of the Apache License 2.0 which accompanies this distribution.    *
+ ******************************************************************************/
+
+// RUN: nvq++ --enable-mlir -shared -fpic %s -o %t && file %t | FileCheck %s
+
+#include <cudaq.h>
+
+struct Qernel {
+  void operator()() __qpu__ {}
+};
+
+int plain_old_function() { return 0; }
+
+// CHECK: shared

tools/nvqpp/nvq++.in

@@ -437,10 +437,16 @@ while [ $# -ne 0 ]; do
 		LINKLIBS="${LINKLIBS} -l$2"
 		shift
 		;;
+	-fPIC|-fpic)
+		# Pass to linker, library mode, and cudaq-quake
+		LINKER_FLAGS="${LINKER_FLAGS} $1"
+		ARGS="${ARGS} $1"
+		CUDAQ_QUAKE_ARGS="${CUDAQ_QUAKE_ARGS} --Xcudaq $1"
+		;;
 	-c)
 		DO_LINK=false
 		;;
-	-L* | -Wl*)
+	-L* | -Wl* |-shared|-static)
 		LINKER_FLAGS="${LINKER_FLAGS} $1"
 		;;
 	-I*)
@@ -652,7 +658,7 @@ if ${DO_LINK}; then
 	run ${LINKER_CXX} ${LINKER_PATH} ${LINKER_FLAGS} ${LINKDIRS} ${OBJS} ${LINKLIBS} ${OUTPUTOPTS}
 else
 	# Save the object file to what the user specified
-	if [ ! -z "${OUTPUTFILE}" ] && [ $((${#OBJS[@]} == 0)) ]; then
+	if [ ! -z "${OUTPUTFILE}" ] && ((${#OBJS[@]} == 0)); then
 		run mv ${OBJS} ${OUTPUTFILE}
 	fi
 fi