Copy changes from the no-history fork, generated back in 2023

Original commit message:
> commit f138311d2d2e0cc9ba0496d523bb46f2c1c9fb73
> Author: rtk0c <[email protected]>
> Date:   Wed Sep 20 23:58:58 2023 -0700
>
>     Copy from the PlasticSCM repo, replace vendored glm wtih conan

In reality, this also introduced a few uncommitted changes in the
original PlasticSCM repo. See the modified and new files in this patch.

1 files changed, 0 insertions, 157 deletions

diff --git a/3rdparty/glm/source/test/ext/ext_vec1.cpp b/3rdparty/glm/source/test/ext/ext_vec1.cpp
deleted file mode 100644
index fc0b931..0000000
--- a/3rdparty/glm/source/test/ext/ext_vec1.cpp
+++ /dev/null
@@ -1,157 +0,0 @@
-#define GLM_FORCE_SWIZZLE
-#include <glm/vector_relational.hpp>
-#include <glm/gtc/vec1.hpp>
-#include <vector>
-
-static glm::vec1 g1;
-static glm::vec1 g2(1);
-
-static int test_vec1_operators()
-{
-	int Error(0);
-
-	glm::ivec1 A(1);
-	glm::ivec1 B(1);
-	{
-		bool R = A != B;
-		bool S = A == B;
-
-		Error += (S && !R) ? 0 : 1;
-	}
-
-	{
-		A *= 1;
-		B *= 1;
-		A += 1;
-		B += 1;
-
-		bool R = A != B;
-		bool S = A == B;
-
-		Error += (S && !R) ? 0 : 1;
-	}
-
-	return Error;
-}
-
-static int test_vec1_ctor()
-{
-	int Error = 0;
-
-#	if GLM_HAS_TRIVIAL_QUERIES
-	//	Error += std::is_trivially_default_constructible<glm::vec1>::value ? 0 : 1;
-	//	Error += std::is_trivially_copy_assignable<glm::vec1>::value ? 0 : 1;
-		Error += std::is_trivially_copyable<glm::vec1>::value ? 0 : 1;
-		Error += std::is_trivially_copyable<glm::dvec1>::value ? 0 : 1;
-		Error += std::is_trivially_copyable<glm::ivec1>::value ? 0 : 1;
-		Error += std::is_trivially_copyable<glm::uvec1>::value ? 0 : 1;
-
-		Error += std::is_copy_constructible<glm::vec1>::value ? 0 : 1;
-#	endif
-
-
-	{
-		glm::ivec1 A = glm::vec1(2.0f);
-
-		glm::ivec1 E(glm::dvec1(2.0));
-		Error += A == E ? 0 : 1;
-
-		glm::ivec1 F(glm::ivec1(2));
-		Error += A == F ? 0 : 1;
-	}
-
-	return Error;
-}
-
-static int test_vec1_size()
-{
-	int Error = 0;
-
-	Error += sizeof(glm::vec1) == sizeof(glm::mediump_vec1) ? 0 : 1;
-	Error += 4 == sizeof(glm::mediump_vec1) ? 0 : 1;
-	Error += sizeof(glm::dvec1) == sizeof(glm::highp_dvec1) ? 0 : 1;
-	Error += 8 == sizeof(glm::highp_dvec1) ? 0 : 1;
-	Error += glm::vec1().length() == 1 ? 0 : 1;
-	Error += glm::dvec1().length() == 1 ? 0 : 1;
-	Error += glm::vec1::length() == 1 ? 0 : 1;
-	Error += glm::dvec1::length() == 1 ? 0 : 1;
-
-	GLM_CONSTEXPR std::size_t Length = glm::vec1::length();
-	Error += Length == 1 ? 0 : 1;
-
-	return Error;
-}
-
-static int test_vec1_operator_increment()
-{
-	int Error(0);
-
-	glm::ivec1 v0(1);
-	glm::ivec1 v1(v0);
-	glm::ivec1 v2(v0);
-	glm::ivec1 v3 = ++v1;
-	glm::ivec1 v4 = v2++;
-
-	Error += glm::all(glm::equal(v0, v4)) ? 0 : 1;
-	Error += glm::all(glm::equal(v1, v2)) ? 0 : 1;
-	Error += glm::all(glm::equal(v1, v3)) ? 0 : 1;
-
-	int i0(1);
-	int i1(i0);
-	int i2(i0);
-	int i3 = ++i1;
-	int i4 = i2++;
-
-	Error += i0 == i4 ? 0 : 1;
-	Error += i1 == i2 ? 0 : 1;
-	Error += i1 == i3 ? 0 : 1;
-
-	return Error;
-}
-
-static int test_bvec1_ctor()
-{
-	int Error = 0;
-
-	glm::bvec1 const A(true);
-	glm::bvec1 const B(true);
-	glm::bvec1 const C(false);
-	glm::bvec1 const D = A && B;
-	glm::bvec1 const E = A && C;
-	glm::bvec1 const F = A || C;
-
-	Error += D == glm::bvec1(true) ? 0 : 1;
-	Error += E == glm::bvec1(false) ? 0 : 1;
-	Error += F == glm::bvec1(true) ? 0 : 1;
-
-	bool const G = A == C;
-	bool const H = A != C;
-	Error += !G ? 0 : 1;
-	Error += H ? 0 : 1;
-
-	return Error;
-}
-
-static int test_constexpr()
-{
-#if GLM_HAS_CONSTEXPR
-	static_assert(glm::vec1::length() == 1, "GLM: Failed constexpr");
-	static_assert(glm::vec1(1.0f).x > 0.0f, "GLM: Failed constexpr");
-#endif
-
-	return 0;
-}
-
-int main()
-{
-	int Error = 0;
-
-	Error += test_vec1_size();
-	Error += test_vec1_ctor();
-	Error += test_bvec1_ctor();
-	Error += test_vec1_operators();
-	Error += test_vec1_operator_increment();
-	Error += test_constexpr();
-	
-	return Error;
-}